231353401 has 4 divisors (see below), whose sum is σ = 231385572. Its totient is φ = 231321232.

The previous prime is 231353399. The next prime is 231353413. The reversal of 231353401 is 104353132.

231353401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 199487376 + 31866025 = 14124^2 + 5645^2 .

It is a cyclic number.

It is not a de Polignac number, because 231353401 - 2¹ = 231353399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231353461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195 + ... + 21511.

It is an arithmetic number, because the mean of its divisors is an integer number (57846393).

Almost surely, 2^231353401 is an apocalyptic number.

It is an amenable number.

231353401 is a deficient number, since it is larger than the sum of its proper divisors (32171).

231353401 is a wasteful number, since it uses less digits than its factorization.

231353401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32170.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 231353401 is about 15210.3057497211. The cubic root of 231353401 is about 613.8919842739.

The spelling of 231353401 in words is "two hundred thirty-one million, three hundred fifty-three thousand, four hundred one".