1231074573444 has 117 divisors (see below), whose sum is σ = 3235820785141. Its totient is φ = 409818955680.

The previous prime is 1231074573437. The next prime is 1231074573451. The reversal of 1231074573444 is 4443754701321.

The square root of 1231074573444 is 1109538.

It is a perfect power (a square), and thus also a powerful number.

1231074573444 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 0 + 74 + 573 + 4 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1231074573437) and next prime (1231074573451).

It can be written as a sum of positive squares in only one way, i.e., 3233287044 + 1227841286400 = 56862^2 + 1108080^2 .

It is a super-2 number, since 2×1231074573444² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231074573444.

It is an unprimeable number.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 1617706024 + ... + 1617706784.

Almost surely, 2^{1231074573444} is an apocalyptic number.

1231074573444 is the 1109538-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231074573444

1231074573444 is an abundant number, since it is smaller than the sum of its proper divisors (2004746211697).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231074573444 is an frugal number, since it uses more digits than its factorization.

1231074573444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 1231074573444 in words is "one trillion, two hundred thirty-one billion, seventy-four million, five hundred seventy-three thousand, four hundred forty-four".