31200010231011 has 64 divisors (see below), whose sum is σ = 45690656256000. Its totient is φ = 18874097728640.

The previous prime is 31200010231003. The next prime is 31200010231037. The reversal of 31200010231011 is 11013201000213.

It is a happy number.

It is not a de Polignac number, because 31200010231011 - 2³ = 31200010231003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31200010231081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227903500 + ... + 228040358.

It is an arithmetic number, because the mean of its divisors is an integer number (713916504000).

Almost surely, 2^{31200010231011} is an apocalyptic number.

31200010231011 is a deficient number, since it is larger than the sum of its proper divisors (14490646024989).

31200010231011 is a wasteful number, since it uses less digits than its factorization.

31200010231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138904.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31200010231011 its reverse (11013201000213), we get a palindrome (42213211231224).

The spelling of 31200010231011 in words is "thirty-one trillion, two hundred billion, ten million, two hundred thirty-one thousand, eleven".