123011032401 has 10 divisors (see below), whose sum is σ = 183757221362. Its totient is φ = 82007354880.

The previous prime is 123011032379. The next prime is 123011032433. The reversal of 123011032401 is 104230110321.

123011032401 is a `hidden beast` number, since 1 + 230 + 1 + 1 + 0 + 32 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112308095376 + 10702937025 = 335124^2 + 103455^2 .

It is not a de Polignac number, because 123011032401 - 2⁶ = 123011032337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123011032471) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 759327280 + ... + 759327441.

Almost surely, 2^123011032401 is an apocalyptic number.

It is an amenable number.

123011032401 is a deficient number, since it is larger than the sum of its proper divisors (60746188961).

123011032401 is an equidigital number, since it uses as much as digits as its factorization.

123011032401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518654733 (or 1518654724 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 123011032401 its reverse (104230110321), we get a palindrome (227241142722).

The spelling of 123011032401 in words is "one hundred twenty-three billion, eleven million, thirty-two thousand, four hundred one".