23431542231340 has 24 divisors (see below), whose sum is σ = 49230805039920. Its totient is φ = 9367937587008.

The previous prime is 23431542231313. The next prime is 23431542231407. The reversal of 23431542231340 is 4313224513432.

It is a self number, because there is not a number n which added to its sum of digits gives 23431542231340.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 292415535 + ... + 292495654.

It is an arithmetic number, because the mean of its divisors is an integer number (2051283543330).

Almost surely, 2^{23431542231340} is an apocalyptic number.

23431542231340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23431542231340 is an abundant number, since it is smaller than the sum of its proper divisors (25799262808580).

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

23431542231340 is a wasteful number, since it uses less digits than its factorization.

23431542231340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584913201 (or 584913199 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 23431542231340 its reverse (4313224513432), we get a palindrome (27744766744772).

The spelling of 23431542231340 in words is "twenty-three trillion, four hundred thirty-one billion, five hundred forty-two million, two hundred thirty-one thousand, three hundred forty".