1232120540451 has 32 divisors (see below), whose sum is σ = 1720869587712. Its totient is φ = 783441509760.

The previous prime is 1232120540449. The next prime is 1232120540489. The reversal of 1232120540451 is 1540450212321.

It is not a de Polignac number, because 1232120540451 - 2¹ = 1232120540449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232120540401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1015561 + ... + 1869653.

It is an arithmetic number, because the mean of its divisors is an integer number (53777174616).

Almost surely, 2^{1232120540451} is an apocalyptic number.

1232120540451 is a deficient number, since it is larger than the sum of its proper divisors (488749047261).

1232120540451 is a wasteful number, since it uses less digits than its factorization.

1232120540451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854403.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1232120540451 its reverse (1540450212321), we get a palindrome (2772570752772).

The spelling of 1232120540451 in words is "one trillion, two hundred thirty-two billion, one hundred twenty million, five hundred forty thousand, four hundred fifty-one".