231150221010 has 48 divisors (see below), whose sum is σ = 601165632600. Its totient is φ = 61622104320.

The previous prime is 231150220997. The next prime is 231150221017. The reversal of 231150221010 is 10122051132.

231150221010 is digitally balanced in base 2, 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 4 ways, for example, as 49656328569 + 181493892441 = 222837^2 + 426021^2 .

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

It is not an unprimeable number, because it can be changed into a prime (231150221017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61921 + ... + 682740.

Almost surely, 2^231150221010 is an apocalyptic number.

231150221010 is an abundant number, since it is smaller than the sum of its proper divisors (370015411590).

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

231150221010 is a wasteful number, since it uses less digits than its factorization.

231150221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748123 (or 748120 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 231150221010 its reverse (10122051132), we get a palindrome (241272272142).

The spelling of 231150221010 in words is "two hundred thirty-one billion, one hundred fifty million, two hundred twenty-one thousand, ten".