31011130002 has 16 divisors (see below), whose sum is σ = 62510625792. Its totient is φ = 10255649040.

The previous prime is 31011130001. The next prime is 31011130037. The reversal of 31011130002 is 20003111013.

It is a self number, because there is not a number n which added to its sum of digits gives 31011130002.

It is not an unprimeable number, because it can be changed into a prime (31011130001) 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, 20347749 + ... + 20349272.

It is an arithmetic number, because the mean of its divisors is an integer number (3906914112).

Almost surely, 2^31011130002 is an apocalyptic number.

31011130002 is an abundant number, since it is smaller than the sum of its proper divisors (31499495790).

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

31011130002 is a wasteful number, since it uses less digits than its factorization.

31011130002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40697153.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31011130002 its reverse (20003111013), we get a palindrome (51014241015).

The spelling of 31011130002 in words is "thirty-one billion, eleven million, one hundred thirty thousand, two".