31344431101413 has 32 divisors (see below), whose sum is σ = 45089753258880. Its totient is φ = 19297671444480.

The previous prime is 31344431101397. The next prime is 31344431101469. The reversal of 31344431101413 is 31410113444313.

It is not a de Polignac number, because 31344431101413 - 2⁴ = 31344431101397 is a prime.

It is a super-2 number, since 2×31344431101413² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344431101013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25762570 + ... + 26951787.

It is an arithmetic number, because the mean of its divisors is an integer number (1409054789340).

Almost surely, 2^{31344431101413} is an apocalyptic number.

It is an amenable number.

31344431101413 is a deficient number, since it is larger than the sum of its proper divisors (13745322157467).

31344431101413 is a wasteful number, since it uses less digits than its factorization.

31344431101413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52714597.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 31344431101413 its reverse (31410113444313), we get a palindrome (62754544545726).

The spelling of 31344431101413 in words is "thirty-one trillion, three hundred forty-four billion, four hundred thirty-one million, one hundred one thousand, four hundred thirteen".