31020002032312 has 8 divisors (see below), whose sum is σ = 58162503810600. Its totient is φ = 15510001016152.

The previous prime is 31020002032307. The next prime is 31020002032361. The reversal of 31020002032312 is 21323020002013.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×31020002032312² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31020002032312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1938750127012 + ... + 1938750127027.

It is an arithmetic number, because the mean of its divisors is an integer number (7270312976325).

Almost surely, 2^{31020002032312} is an apocalyptic number.

It is an amenable number.

31020002032312 is a deficient number, since it is larger than the sum of its proper divisors (27142501778288).

31020002032312 is a wasteful number, since it uses less digits than its factorization.

31020002032312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877500254045 (or 3877500254041 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31020002032312 its reverse (21323020002013), we get a palindrome (52343022034325).

The spelling of 31020002032312 in words is "thirty-one trillion, twenty billion, two million, thirty-two thousand, three hundred twelve".