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131200030230000 = 2435440959917851
BaseRepresentation
bin11101110101001101100011…
…001100100100010111110000
3122012112121012200121020111220
4131311031203030210113300
5114144040130214330000
61143012243430305040
736430614025311564
oct3565154314442760
9565477180536456
10131200030230000
1138893690761596
121286b5407b8180
1358291571c5764
1424581887156a4
151027c31c561a0
hex7753633245f0

131200030230000 has 400 divisors, whose sum is σ = 425299335648000. Its totient is φ = 34840915200000.

The previous prime is 131200030229999. The next prime is 131200030230007. The reversal of 131200030230000 is 32030002131.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131200030230007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7349721075 + ... + 7349738925.

It is an arithmetic number, because the mean of its divisors is an integer number (1063248339120).

Almost surely, 2131200030230000 is an apocalyptic number.

131200030230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131200030230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212649667824000).

131200030230000 is an abundant number, since it is smaller than the sum of its proper divisors (294099305418000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131200030230000 is a wasteful number, since it uses less digits than its factorization.

131200030230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18890 (or 18869 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 131200030230000 its reverse (32030002131), we get a palindrome (131232060232131).

The spelling of 131200030230000 in words is "one hundred thirty-one trillion, two hundred billion, thirty million, two hundred thirty thousand".