31012461413 has 2 divisors, whose sum is σ = 31012461414. Its totient is φ = 31012461412.

The previous prime is 31012461397. The next prime is 31012461439. The reversal of 31012461413 is 31416421013.

It is a happy number.

It is an a-pointer prime, because the next prime (31012461439) can be obtained adding 31012461413 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18621877444 + 12390583969 = 136462^2 + 111313^2 .

It is a cyclic number.

It is not a de Polignac number, because 31012461413 - 2⁴ = 31012461397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31012481413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506230706 + 15506230707.

It is an arithmetic number, because the mean of its divisors is an integer number (15506230707).

Almost surely, 2^31012461413 is an apocalyptic number.

It is an amenable number.

31012461413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31012461413 is an equidigital number, since it uses as much as digits as its factorization.

31012461413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 31012461413 its reverse (31416421013), we get a palindrome (62428882426).

The spelling of 31012461413 in words is "thirty-one billion, twelve million, four hundred sixty-one thousand, four hundred thirteen".