31214444142021 has 64 divisors (see below), whose sum is σ = 50151122841600. Its totient is φ = 16870108018176.

The previous prime is 31214444141981. The next prime is 31214444142127. The reversal of 31214444142021 is 12024144441213.

It is not a de Polignac number, because 31214444142021 - 2¹⁴ = 31214444125637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214444143021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 643931041 + ... + 643979513.

It is an arithmetic number, because the mean of its divisors is an integer number (783611294400).

Almost surely, 2^{31214444142021} is an apocalyptic number.

It is an amenable number.

31214444142021 is a deficient number, since it is larger than the sum of its proper divisors (18936678699579).

31214444142021 is a wasteful number, since it uses less digits than its factorization.

31214444142021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51138.

The product of its (nonzero) digits is 24576, while the sum is 33.

Adding to 31214444142021 its reverse (12024144441213), we get a palindrome (43238588583234).

The spelling of 31214444142021 in words is "thirty-one trillion, two hundred fourteen billion, four hundred forty-four million, one hundred forty-two thousand, twenty-one".