1153220400423 has 48 divisors (see below), whose sum is σ = 2050668605440. Its totient is φ = 608144023872.

The previous prime is 1153220400413. The next prime is 1153220400427. The reversal of 1153220400423 is 3240040223511.

1153220400423 is a `hidden beast` number, since 1 + 1 + 5 + 32 + 204 + 0 + 0 + 423 = 666.

It is not a de Polignac number, because 1153220400423 - 2⁵ = 1153220400391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153220400427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3236940 + ... + 3575502.

Almost surely, 2^{1153220400423} is an apocalyptic number.

1153220400423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1153220400423 is a deficient number, since it is larger than the sum of its proper divisors (897448205017).

1153220400423 is a wasteful number, since it uses less digits than its factorization.

1153220400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342748 (or 342745 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1153220400423 its reverse (3240040223511), we get a palindrome (4393260623934).

The spelling of 1153220400423 in words is "one trillion, one hundred fifty-three billion, two hundred twenty million, four hundred thousand, four hundred twenty-three".