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10311123132 = 2232286420087
BaseRepresentation
bin10011001101001011…
…10100000010111100
3222121121012022211100
421212211310002330
5132104121420012
64423055053100
7513343046322
oct114645640274
928547168740
1010311123132
1144113a6472
121bb9211190
13c842b10bb
146db5cdd12
154053678dc
hex2669740bc

10311123132 has 18 divisors (see below), whose sum is σ = 26064228008. Its totient is φ = 3437041032.

The previous prime is 10311123131. The next prime is 10311123143. The reversal of 10311123132 is 23132111301.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311123131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143210008 + ... + 143210079.

Almost surely, 210311123132 is an apocalyptic number.

10311123132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10311123132 is an abundant number, since it is smaller than the sum of its proper divisors (15753104876).

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

10311123132 is a wasteful number, since it uses less digits than its factorization.

10311123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286420097 (or 286420092 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10311123132 its reverse (23132111301), we get a palindrome (33443234433).

The spelling of 10311123132 in words is "ten billion, three hundred eleven million, one hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 286420087 572840174 859260261 1145680348 1718520522 2577780783 3437041044 5155561566 10311123132