31020010230311 has 8 divisors (see below), whose sum is σ = 31081305340848. Its totient is φ = 30958772328000.

The previous prime is 31020010230299. The next prime is 31020010230337. The reversal of 31020010230311 is 11303201002013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31020010230311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31020010230311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020030230311) 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, 13216445 + ... + 15385526.

It is an arithmetic number, because the mean of its divisors is an integer number (3885163167606).

Almost surely, 2^{31020010230311} is an apocalyptic number.

31020010230311 is a deficient number, since it is larger than the sum of its proper divisors (61295110537).

31020010230311 is a wasteful number, since it uses less digits than its factorization.

31020010230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28604113.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31020010230311 its reverse (11303201002013), we get a palindrome (42323211232324).

The spelling of 31020010230311 in words is "thirty-one trillion, twenty billion, ten million, two hundred thirty thousand, three hundred eleven".