1232451215393 has 2 divisors, whose sum is σ = 1232451215394. Its totient is φ = 1232451215392.

The previous prime is 1232451215357. The next prime is 1232451215447. The reversal of 1232451215393 is 3935121542321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844132800289 + 388318415104 = 918767^2 + 623152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232451215393 - 2¹⁶ = 1232451149857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1232451215393.

It is not a weakly prime, because it can be changed into another prime (1232451215293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616225607696 + 616225607697.

It is an arithmetic number, because the mean of its divisors is an integer number (616225607697).

Almost surely, 2^{1232451215393} is an apocalyptic number.

It is an amenable number.

1232451215393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232451215393 is an equidigital number, since it uses as much as digits as its factorization.

1232451215393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The spelling of 1232451215393 in words is "one trillion, two hundred thirty-two billion, four hundred fifty-one million, two hundred fifteen thousand, three hundred ninety-three".