15140422322231 has 4 divisors (see below), whose sum is σ = 15937286655000. Its totient is φ = 14343557989464.

The previous prime is 15140422322203. The next prime is 15140422322279. The reversal of 15140422322231 is 13222322404151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15140422322231 - 2²² = 15140418127927 is a prime.

It is a super-2 number, since 2×15140422322231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15140422321231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398432166356 + ... + 398432166393.

It is an arithmetic number, because the mean of its divisors is an integer number (3984321663750).

Almost surely, 2^{15140422322231} is an apocalyptic number.

15140422322231 is a deficient number, since it is larger than the sum of its proper divisors (796864332769).

15140422322231 is an equidigital number, since it uses as much as digits as its factorization.

15140422322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796864332768.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 15140422322231 its reverse (13222322404151), we get a palindrome (28362744726382).

The spelling of 15140422322231 in words is "fifteen trillion, one hundred forty billion, four hundred twenty-two million, three hundred twenty-two thousand, two hundred thirty-one".