115120213550 has 24 divisors (see below), whose sum is σ = 214160700576. Its totient is φ = 46040106240.

The previous prime is 115120213531. The next prime is 115120213561. The reversal of 115120213550 is 55312021511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96299 + ... + 489401.

It is an arithmetic number, because the mean of its divisors is an integer number (8923362524).

Almost surely, 2^115120213550 is an apocalyptic number.

115120213550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115120213550 is a deficient number, since it is larger than the sum of its proper divisors (99040487026).

115120213550 is a wasteful number, since it uses less digits than its factorization.

115120213550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398972 (or 398967 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 115120213550 in words is "one hundred fifteen billion, one hundred twenty million, two hundred thirteen thousand, five hundred fifty".