123031401 has 16 divisors (see below), whose sum is σ = 169781568. Its totient is φ = 79185600.

The previous prime is 123031379. The next prime is 123031409. The reversal of 123031401 is 104130321.

It is not a de Polignac number, because 123031401 - 2⁷ = 123031273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123031409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10311 + ... + 18771.

It is an arithmetic number, because the mean of its divisors is an integer number (10611348).

Almost surely, 2^123031401 is an apocalyptic number.

It is an amenable number.

123031401 is a deficient number, since it is larger than the sum of its proper divisors (46750167).

123031401 is a wasteful number, since it uses less digits than its factorization.

123031401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123031401 is about 11091.9520824785. The cubic root of 123031401 is about 497.3613003585.

Adding to 123031401 its reverse (104130321), we get a palindrome (227161722).

The spelling of 123031401 in words is "one hundred twenty-three million, thirty-one thousand, four hundred one".