245113213521320 has 64 divisors (see below), whose sum is σ = 561295300118400. Its totient is φ = 96312892135680.

The previous prime is 245113213521283. The next prime is 245113213521359. The reversal of 245113213521320 is 23125312311542.

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, 126419711 + ... + 128343950.

It is an arithmetic number, because the mean of its divisors is an integer number (8770239064350).

Almost surely, 2^{245113213521320} is an apocalyptic number.

245113213521320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245113213521320 is an abundant number, since it is smaller than the sum of its proper divisors (316182086597080).

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

245113213521320 is a wasteful number, since it uses less digits than its factorization.

245113213521320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254764098 (or 254764094 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 245113213521320 its reverse (23125312311542), we get a palindrome (268238525832862).

The spelling of 245113213521320 in words is "two hundred forty-five trillion, one hundred thirteen billion, two hundred thirteen million, five hundred twenty-one thousand, three hundred twenty".