115243420212 has 36 divisors (see below), whose sum is σ = 291611095776. Its totient is φ = 38374736400.

The previous prime is 115243420181. The next prime is 115243420219. The reversal of 115243420212 is 212024342511.

115243420212 is a `hidden beast` number, since 1 + 1 + 5 + 24 + 3 + 420 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×115243420212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115243420219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1620414 + ... + 1690037.

It is an arithmetic number, because the mean of its divisors is an integer number (8100308216).

Almost surely, 2^115243420212 is an apocalyptic number.

115243420212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115243420212 is an abundant number, since it is smaller than the sum of its proper divisors (176367675564).

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

115243420212 is a wasteful number, since it uses less digits than its factorization.

115243420212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311428 (or 3311423 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 115243420212 its reverse (212024342511), we get a palindrome (327267762723).

The spelling of 115243420212 in words is "one hundred fifteen billion, two hundred forty-three million, four hundred twenty thousand, two hundred twelve".