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31321212013001 = 1341120749112559
BaseRepresentation
bin1110001111100100010011…
…01101110100100111001001
311002220021112010012010020102
413013302021231310213021
513101131320233404001
6150340433253535145
76411611555245241
oct707621155644711
9132807463163212
1031321212013001
119a862847035a9
12361a3166444b5
131462768050671
147a3d51b96b21
15394b0b079e6b
hex1c7c89b749c9

31321212013001 has 8 divisors (see below), whose sum is σ = 31325335440000. Its totient is φ = 31317088879440.

The previous prime is 31321212012983. The next prime is 31321212013033. The reversal of 31321212013001 is 10031021212313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31321212013001 - 214 = 31321211996617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31321212013901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278208560 + ... + 278321118.

It is an arithmetic number, because the mean of its divisors is an integer number (3915666930000).

Almost surely, 231321212013001 is an apocalyptic number.

It is an amenable number.

31321212013001 is a deficient number, since it is larger than the sum of its proper divisors (4123426999).

31321212013001 is a wasteful number, since it uses less digits than its factorization.

31321212013001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146719.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31321212013001 its reverse (10031021212313), we get a palindrome (41352233225314).

The spelling of 31321212013001 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred twelve million, thirteen thousand, one".

Divisors: 1 13411 20749 112559 278264839 1509528749 2335486691 31321212013001