231400040011242 has 32 divisors (see below), whose sum is σ = 463524995544000. Its totient is φ = 77012561299968.

The previous prime is 231400040011241. The next prime is 231400040011247. The reversal of 231400040011242 is 242110040004132.

It is not an unprimeable number, because it can be changed into a prime (231400040011241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23108634 + ... + 31572282.

It is an arithmetic number, because the mean of its divisors is an integer number (14485156110750).

Almost surely, 2^{231400040011242} is an apocalyptic number.

231400040011242 is an abundant number, since it is smaller than the sum of its proper divisors (232124955532758).

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

231400040011242 is a wasteful number, since it uses less digits than its factorization.

231400040011242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470790.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 231400040011242 its reverse (242110040004132), we get a palindrome (473510080015374).

The spelling of 231400040011242 in words is "two hundred thirty-one trillion, four hundred billion, forty million, eleven thousand, two hundred forty-two".