231450202040 has 16 divisors (see below), whose sum is σ = 520762954680. Its totient is φ = 92580080800.

The previous prime is 231450201959. The next prime is 231450202057. The reversal of 231450202040 is 40202054132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 231450201997 and 231450202015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2893127486 + ... + 2893127565.

Almost surely, 2^231450202040 is an apocalyptic number.

231450202040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231450202040 is an abundant number, since it is smaller than the sum of its proper divisors (289312752640).

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

231450202040 is a wasteful number, since it uses less digits than its factorization.

231450202040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786255062 (or 5786255058 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 231450202040 its reverse (40202054132), we get a palindrome (271652256172).

The spelling of 231450202040 in words is "two hundred thirty-one billion, four hundred fifty million, two hundred two thousand, forty".