31204101431 has 8 divisors (see below), whose sum is σ = 31396762800. Its totient is φ = 31011644160.

The previous prime is 31204101421. The next prime is 31204101433. The reversal of 31204101431 is 13410140213.

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 31204101431 - 2¹⁸ = 31203839287 is a prime.

It is a super-2 number, since 2×31204101431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204101433) 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, 261575 + ... + 361703.

It is an arithmetic number, because the mean of its divisors is an integer number (3924595350).

Almost surely, 2^31204101431 is an apocalyptic number.

31204101431 is a deficient number, since it is larger than the sum of its proper divisors (192661369).

31204101431 is a wasteful number, since it uses less digits than its factorization.

31204101431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102049.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31204101431 its reverse (13410140213), we get a palindrome (44614241644).

The spelling of 31204101431 in words is "thirty-one billion, two hundred four million, one hundred one thousand, four hundred thirty-one".