231001212102 has 16 divisors (see below), whose sum is σ = 477933542640. Its totient is φ = 74345217632.

The previous prime is 231001212059. The next prime is 231001212107. The reversal of 231001212102 is 201212100132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231001212107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663796413 + ... + 663796760.

It is an arithmetic number, because the mean of its divisors is an integer number (29870846415).

Almost surely, 2^231001212102 is an apocalyptic number.

231001212102 is an abundant number, since it is smaller than the sum of its proper divisors (246932330538).

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

231001212102 is a wasteful number, since it uses less digits than its factorization.

231001212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327593207.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 231001212102 its reverse (201212100132), we get a palindrome (432213312234).

The spelling of 231001212102 in words is "two hundred thirty-one billion, one million, two hundred twelve thousand, one hundred two".