15131201340 has 24 divisors (see below), whose sum is σ = 42367363920. Its totient is φ = 4034987008.

The previous prime is 15131201333. The next prime is 15131201357. The reversal of 15131201340 is 4310213151.

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, 126093285 + ... + 126093404.

It is an arithmetic number, because the mean of its divisors is an integer number (1765306830).

Almost surely, 2^15131201340 is an apocalyptic number.

15131201340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15131201340 is an abundant number, since it is smaller than the sum of its proper divisors (27236162580).

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

15131201340 is a wasteful number, since it uses less digits than its factorization.

15131201340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252186701 (or 252186699 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 15131201340 its reverse (4310213151), we get a palindrome (19441414491).

The spelling of 15131201340 in words is "fifteen billion, one hundred thirty-one million, two hundred one thousand, three hundred forty".