231642211250 has 30 divisors (see below), whose sum is σ = 434222058369. Its totient is φ = 92650078000.

The previous prime is 231642211219. The next prime is 231642211303. The reversal of 231642211250 is 52112246132.

231642211250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 175700973889 + 55941237361 = 419167^2 + 236519^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=340325.

It is a super-2 number, since 2×231642211250² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 17009444 + ... + 17023056.

Almost surely, 2^231642211250 is an apocalyptic number.

231642211250 is a deficient number, since it is larger than the sum of its proper divisors (202579847119).

231642211250 is an frugal number, since it uses more digits than its factorization.

231642211250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27248 (or 13620 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 231642211250 its reverse (52112246132), we get a palindrome (283754457382).

The spelling of 231642211250 in words is "two hundred thirty-one billion, six hundred forty-two million, two hundred eleven thousand, two hundred fifty".