31030413213 has 16 divisors (see below), whose sum is σ = 42095338560. Its totient is φ = 20326551936.

The previous prime is 31030413097. The next prime is 31030413233. The reversal of 31030413213 is 31231403013.

It is not a de Polignac number, because 31030413213 - 2⁹ = 31030412701 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31030413213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030413233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337231 + ... + 419267.

It is an arithmetic number, because the mean of its divisors is an integer number (2630958660).

Almost surely, 2^31030413213 is an apocalyptic number.

It is an amenable number.

31030413213 is a deficient number, since it is larger than the sum of its proper divisors (11064925347).

31030413213 is a wasteful number, since it uses less digits than its factorization.

31030413213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84236.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31030413213 its reverse (31231403013), we get a palindrome (62261816226).

The spelling of 31030413213 in words is "thirty-one billion, thirty million, four hundred thirteen thousand, two hundred thirteen".