231403226402 has 16 divisors (see below), whose sum is σ = 347469453240. Its totient is φ = 115580120832.

The previous prime is 231403226387. The next prime is 231403226473. The reversal of 231403226402 is 204622304132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53750249281 + 177652977121 = 231841^2 + 421489^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15103898 + ... + 15119210.

Almost surely, 2^231403226402 is an apocalyptic number.

231403226402 is a deficient number, since it is larger than the sum of its proper divisors (116066226838).

231403226402 is a wasteful number, since it uses less digits than its factorization.

231403226402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22757.

The product of its (nonzero) digits is 13824, while the sum is 29.

The spelling of 231403226402 in words is "two hundred thirty-one billion, four hundred three million, two hundred twenty-six thousand, four hundred two".