13031202640542 has 16 divisors (see below), whose sum is σ = 26068365179280. Its totient is φ = 4342740897152.

The previous prime is 13031202640541. The next prime is 13031202640579. The reversal of 13031202640542 is 24504620213031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031202640541) 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, 248300667 + ... + 248353142.

It is an arithmetic number, because the mean of its divisors is an integer number (1629272823705).

Almost surely, 2^{13031202640542} is an apocalyptic number.

13031202640542 is an abundant number, since it is smaller than the sum of its proper divisors (13037162538738).

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

13031202640542 is a wasteful number, since it uses less digits than its factorization.

13031202640542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496658187.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 13031202640542 its reverse (24504620213031), we get a palindrome (37535822853573).

The spelling of 13031202640542 in words is "thirteen trillion, thirty-one billion, two hundred two million, six hundred forty thousand, five hundred forty-two".