31021424212013 has 2 divisors, whose sum is σ = 31021424212014. Its totient is φ = 31021424212012.

The previous prime is 31021424211977. The next prime is 31021424212049. The reversal of 31021424212013 is 31021242412013.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (31021424211977) and next prime (31021424212049).

It can be written as a sum of positive squares in only one way, i.e., 23756685090889 + 7264739121124 = 4874083^2 + 2695318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31021424212013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31021424212213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510712106006 + 15510712106007.

It is an arithmetic number, because the mean of its divisors is an integer number (15510712106007).

Almost surely, 2^{31021424212013} is an apocalyptic number.

It is an amenable number.

31021424212013 is a deficient number, since it is larger than the sum of its proper divisors (1).

31021424212013 is an equidigital number, since it uses as much as digits as its factorization.

31021424212013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31021424212013 its reverse (31021242412013), we get a palindrome (62042666624026).

The spelling of 31021424212013 in words is "thirty-one trillion, twenty-one billion, four hundred twenty-four million, two hundred twelve thousand, thirteen".