231141402 has 24 divisors (see below), whose sum is σ = 501964320. Its totient is φ = 76869000.

The previous prime is 231141377. The next prime is 231141437. The reversal of 231141402 is 204141132.

231141402 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6724 + ... + 22527.

It is an arithmetic number, because the mean of its divisors is an integer number (20915180).

Almost surely, 2^231141402 is an apocalyptic number.

231141402 is an abundant number, since it is smaller than the sum of its proper divisors (270822918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231141402 is a wasteful number, since it uses less digits than its factorization.

231141402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29698 (or 29695 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 231141402 is about 15203.3352261930. The cubic root of 231141402 is about 613.7044151570.

Adding to 231141402 its reverse (204141132), we get a palindrome (435282534).

The spelling of 231141402 in words is "two hundred thirty-one million, one hundred forty-one thousand, four hundred two".