1213515541150 has 48 divisors (see below), whose sum is σ = 2462986765008. Its totient is φ = 441161280000.

The previous prime is 1213515541109. The next prime is 1213515541157. The reversal of 1213515541150 is 511455153121.

It is a super-2 number, since 2×1213515541150² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213515541157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1795300 + ... + 2377000.

It is an arithmetic number, because the mean of its divisors is an integer number (51312224271).

Almost surely, 2^{1213515541150} is an apocalyptic number.

1213515541150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213515541150 is an abundant number, since it is smaller than the sum of its proper divisors (1249471223858).

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

1213515541150 is a wasteful number, since it uses less digits than its factorization.

1213515541150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585517 (or 585512 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 34.

The spelling of 1213515541150 in words is "one trillion, two hundred thirteen billion, five hundred fifteen million, five hundred forty-one thousand, one hundred fifty".