231240200032342 has 16 divisors (see below), whose sum is σ = 349008712416000. Its totient is φ = 114905116692160.

The previous prime is 231240200032337. The next prime is 231240200032363. The reversal of 231240200032342 is 243230002042132.

It is a super-2 number, since 2×231240200032342² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231240200032342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288131617 + ... + 288933052.

It is an arithmetic number, because the mean of its divisors is an integer number (21813044526000).

Almost surely, 2^{231240200032342} is an apocalyptic number.

231240200032342 is a deficient number, since it is larger than the sum of its proper divisors (117768512383658).

231240200032342 is a wasteful number, since it uses less digits than its factorization.

231240200032342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577065911.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 231240200032342 its reverse (243230002042132), we get a palindrome (474470202074474).

The spelling of 231240200032342 in words is "two hundred thirty-one trillion, two hundred forty billion, two hundred million, thirty-two thousand, three hundred forty-two".