113151521280 has 960 divisors, whose sum is σ = 465517704960. Its totient is φ = 23253221376.

The previous prime is 113151521213. The next prime is 113151521291. The reversal of 113151521280 is 82125151311.

It is a tau number, because it is divible by the number of its divisors (960).

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 147140736 + ... + 147141504.

It is an arithmetic number, because the mean of its divisors is an integer number (484914276).

Almost surely, 2^113151521280 is an apocalyptic number.

113151521280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113151521280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232758852480).

113151521280 is an abundant number, since it is smaller than the sum of its proper divisors (352366183680).

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

113151521280 is a wasteful number, since it uses less digits than its factorization.

113151521280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 30.

Adding to 113151521280 its reverse (82125151311), we get a palindrome (195276672591).

The spelling of 113151521280 in words is "one hundred thirteen billion, one hundred fifty-one million, five hundred twenty-one thousand, two hundred eighty".