231172226423746 has 16 divisors (see below), whose sum is σ = 349771497575040. Its totient is φ = 114584870851200.

The previous prime is 231172226423713. The next prime is 231172226423837. The reversal of 231172226423746 is 647324622271132.

It is a junction number, because it is equal to n+sod(n) for n = 231172226423693 and 231172226423702.

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, 785757391 + ... + 786051538.

It is an arithmetic number, because the mean of its divisors is an integer number (21860718598440).

Almost surely, 2^{231172226423746} is an apocalyptic number.

231172226423746 is a deficient number, since it is larger than the sum of its proper divisors (118599271151294).

231172226423746 is a wasteful number, since it uses less digits than its factorization.

231172226423746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571809569.

The product of its digits is 8128512, while the sum is 52.

Adding to 231172226423746 its reverse (647324622271132), we get a palindrome (878496848694878).

The spelling of 231172226423746 in words is "two hundred thirty-one trillion, one hundred seventy-two billion, two hundred twenty-six million, four hundred twenty-three thousand, seven hundred forty-six".