31133121002 has 16 divisors (see below), whose sum is σ = 47482459200. Its totient is φ = 15306792480.

The previous prime is 31133120999. The next prime is 31133121017. The reversal of 31133121002 is 20012133113.

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, 235427 + ... + 343062.

It is an arithmetic number, because the mean of its divisors is an integer number (2967653700).

Almost surely, 2^31133121002 is an apocalyptic number.

31133121002 is a deficient number, since it is larger than the sum of its proper divisors (16349338198).

31133121002 is a wasteful number, since it uses less digits than its factorization.

31133121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578941.

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

Adding to 31133121002 its reverse (20012133113), we get a palindrome (51145254115).

The spelling of 31133121002 in words is "thirty-one billion, one hundred thirty-three million, one hundred twenty-one thousand, two".