1253372140312 has 8 divisors (see below), whose sum is σ = 2350072763100. Its totient is φ = 626686070152.

The previous prime is 1253372140289. The next prime is 1253372140387. The reversal of 1253372140312 is 2130412733521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1253372140312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78335758762 + ... + 78335758777.

Almost surely, 2^{1253372140312} is an apocalyptic number.

It is an amenable number.

1253372140312 is a deficient number, since it is larger than the sum of its proper divisors (1096700622788).

1253372140312 is a wasteful number, since it uses less digits than its factorization.

1253372140312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156671517545 (or 156671517541 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 1253372140312 its reverse (2130412733521), we get a palindrome (3383784873833).

The spelling of 1253372140312 in words is "one trillion, two hundred fifty-three billion, three hundred seventy-two million, one hundred forty thousand, three hundred twelve".