31230405355 has 8 divisors (see below), whose sum is σ = 39448933200. Its totient is φ = 23669359776.

The previous prime is 31230405293. The next prime is 31230405383. The reversal of 31230405355 is 55350403213.

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 31230405355 - 2²⁷ = 31096187627 is a prime.

It is a super-2 number, since 2×31230405355² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164370460 + ... + 164370649.

It is an arithmetic number, because the mean of its divisors is an integer number (4931116650).

Almost surely, 2^31230405355 is an apocalyptic number.

31230405355 is a deficient number, since it is larger than the sum of its proper divisors (8218527845).

31230405355 is a wasteful number, since it uses less digits than its factorization.

31230405355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328741133.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 31230405355 its reverse (55350403213), we get a palindrome (86580808568).

The spelling of 31230405355 in words is "thirty-one billion, two hundred thirty million, four hundred five thousand, three hundred fifty-five".