1231452500125 has 8 divisors (see below), whose sum is σ = 1536852720312. Its totient is φ = 985162000000.

The previous prime is 1231452500123. The next prime is 1231452500147. The reversal of 1231452500125 is 5210052541321.

It can be written as a sum of positive squares in 4 ways, for example, as 15941840121 + 1215510660004 = 126261^2 + 1102502^2 .

It is not a de Polignac number, because 1231452500125 - 2¹ = 1231452500123 is a prime.

It is a super-2 number, since 2×1231452500125² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231452500123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4925809876 + ... + 4925810125.

It is an arithmetic number, because the mean of its divisors is an integer number (192106590039).

Almost surely, 2^{1231452500125} is an apocalyptic number.

It is an amenable number.

1231452500125 is a deficient number, since it is larger than the sum of its proper divisors (305400220187).

1231452500125 is an frugal number, since it uses more digits than its factorization.

1231452500125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9851620016 (or 9851620006 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 1231452500125 in words is "one trillion, two hundred thirty-one billion, four hundred fifty-two million, five hundred thousand, one hundred twenty-five".