315221523442132 has 48 divisors (see below), whose sum is σ = 571257879010560. Its totient is φ = 152097036940800.

The previous prime is 315221523442109. The next prime is 315221523442219. The reversal of 315221523442132 is 231244325122513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19335073 + ... + 31690504.

It is an arithmetic number, because the mean of its divisors is an integer number (11901205812720).

Almost surely, 2^{315221523442132} is an apocalyptic number.

It is an amenable number.

315221523442132 is a deficient number, since it is larger than the sum of its proper divisors (256036355568428).

315221523442132 is a wasteful number, since it uses less digits than its factorization.

315221523442132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51026032 (or 51026030 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

Adding to 315221523442132 its reverse (231244325122513), we get a palindrome (546465848564645).

The spelling of 315221523442132 in words is "three hundred fifteen trillion, two hundred twenty-one billion, five hundred twenty-three million, four hundred forty-two thousand, one hundred thirty-two".