231341122140 has 96 divisors (see below), whose sum is σ = 649666543680. Its totient is φ = 61509206016.

The previous prime is 231341122099. The next prime is 231341122147. The reversal of 231341122140 is 41221143132.

It is a self number, because there is not a number n which added to its sum of digits gives 231341122140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231341122147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32158384 + ... + 32165576.

It is an arithmetic number, because the mean of its divisors is an integer number (6767359830).

Almost surely, 2^231341122140 is an apocalyptic number.

231341122140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231341122140 is an abundant number, since it is smaller than the sum of its proper divisors (418325421540).

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

231341122140 is a wasteful number, since it uses less digits than its factorization.

231341122140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711 (or 8709 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 231341122140 its reverse (41221143132), we get a palindrome (272562265272).

The spelling of 231341122140 in words is "two hundred thirty-one billion, three hundred forty-one million, one hundred twenty-two thousand, one hundred forty".