31303144020412 has 12 divisors (see below), whose sum is σ = 59760547675416. Its totient is φ = 14228701827440.

The previous prime is 31303144020397. The next prime is 31303144020469. The reversal of 31303144020412 is 21402044130313.

It is a happy number.

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, 355717545643 + ... + 355717545730.

It is an arithmetic number, because the mean of its divisors is an integer number (4980045639618).

Almost surely, 2^{31303144020412} is an apocalyptic number.

It is an amenable number.

31303144020412 is a deficient number, since it is larger than the sum of its proper divisors (28457403655004).

31303144020412 is a wasteful number, since it uses less digits than its factorization.

31303144020412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711435091388 (or 711435091386 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31303144020412 its reverse (21402044130313), we get a palindrome (52705188150725).

The spelling of 31303144020412 in words is "thirty-one trillion, three hundred three billion, one hundred forty-four million, twenty thousand, four hundred twelve".