1371240421731 has 24 divisors (see below), whose sum is σ = 1989529910784. Its totient is φ = 910085082480.

The previous prime is 1371240421723. The next prime is 1371240421763.

1371240421731 is a `hidden beast` number, since 1 + 3 + 7 + 1 + 2 + 404 + 217 + 31 = 666.

1371240421731 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1371240421731 - 2³ = 1371240421723 is a prime.

It is a super-2 number, since 2×1371240421731² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1371240421931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1433010 + ... + 2189976.

It is an arithmetic number, because the mean of its divisors is an integer number (82897079616).

Almost surely, 2^{1371240421731} is an apocalyptic number.

1371240421731 is a deficient number, since it is larger than the sum of its proper divisors (618289489053).

1371240421731 is a wasteful number, since it uses less digits than its factorization.

1371240421731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757871 (or 757868 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

It can be divided in two parts, 1371240 and 421731, that added together give a palindrome (1792971).

The spelling of 1371240421731 in words is "one trillion, three hundred seventy-one billion, two hundred forty million, four hundred twenty-one thousand, seven hundred thirty-one".