1373026631421 has 16 divisors (see below), whose sum is σ = 1870588339200. Its totient is φ = 895506980160.

The previous prime is 1373026631413. The next prime is 1373026631443. The reversal of 1373026631421 is 1241366203731.

It is not a de Polignac number, because 1373026631421 - 2³ = 1373026631413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1373026631421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373026631411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12316125 + ... + 12427106.

It is an arithmetic number, because the mean of its divisors is an integer number (116911771200).

Almost surely, 2^{1373026631421} is an apocalyptic number.

It is an amenable number.

1373026631421 is a deficient number, since it is larger than the sum of its proper divisors (497561707779).

1373026631421 is a wasteful number, since it uses less digits than its factorization.

1373026631421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24743636.

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 1373026631421 in words is "one trillion, three hundred seventy-three billion, twenty-six million, six hundred thirty-one thousand, four hundred twenty-one".