31311302030032 has 20 divisors (see below), whose sum is σ = 60667034449060. Its totient is φ = 15655293139968.

The previous prime is 31311302029979. The next prime is 31311302030077. The reversal of 31311302030032 is 23003020311313.

It can be written as a sum of positive squares in 2 ways, for example, as 17684749944976 + 13626552085056 = 4205324^2 + 3691416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31311302029985 and 31311302030012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21644673 + ... + 23045920.

It is an arithmetic number, because the mean of its divisors is an integer number (3033351722453).

Almost surely, 2^{31311302030032} is an apocalyptic number.

It is an amenable number.

31311302030032 is a deficient number, since it is larger than the sum of its proper divisors (29355732419028).

31311302030032 is a wasteful number, since it uses less digits than its factorization.

31311302030032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44734390 (or 44734384 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31311302030032 its reverse (23003020311313), we get a palindrome (54314322341345).

The spelling of 31311302030032 in words is "thirty-one trillion, three hundred eleven billion, three hundred two million, thirty thousand, thirty-two".