20331131012 has 24 divisors (see below), whose sum is σ = 36127392000. Its totient is φ = 10009486656.

The previous prime is 20331131003. The next prime is 20331131057. The reversal of 20331131012 is 21013113302.

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, 116789 + ... + 233027.

It is an arithmetic number, because the mean of its divisors is an integer number (1505308000).

Almost surely, 2^20331131012 is an apocalyptic number.

It is an amenable number.

20331131012 is a deficient number, since it is larger than the sum of its proper divisors (15796260988).

20331131012 is a wasteful number, since it uses less digits than its factorization.

20331131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116915 (or 116913 counting only the distinct ones).

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

Adding to 20331131012 its reverse (21013113302), we get a palindrome (41344244314).

The spelling of 20331131012 in words is "twenty billion, three hundred thirty-one million, one hundred thirty-one thousand, twelve".