315232251240 has 64 divisors (see below), whose sum is σ = 949620893760. Its totient is φ = 83713121280.

The previous prime is 315232251239. The next prime is 315232251247. The reversal of 315232251240 is 42152232513.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 315232251198 and 315232251207.

It is not an unprimeable number, because it can be changed into a prime (315232251247) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5421154 + ... + 5478993.

It is an arithmetic number, because the mean of its divisors is an integer number (14837826465).

Almost surely, 2^315232251240 is an apocalyptic number.

315232251240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315232251240 is an abundant number, since it is smaller than the sum of its proper divisors (634388642520).

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

315232251240 is a wasteful number, since it uses less digits than its factorization.

315232251240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10900402 (or 10900398 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 315232251240 its reverse (42152232513), we get a palindrome (357384483753).

The spelling of 315232251240 in words is "three hundred fifteen billion, two hundred thirty-two million, two hundred fifty-one thousand, two hundred forty".