87990122112011 has 8 divisors (see below), whose sum is σ = 100560258503904. Its totient is φ = 75420015456960.

The previous prime is 87990122111981. The next prime is 87990122112023. The reversal of 87990122112011 is 11021122109978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87990122112011 - 2³⁰ = 87989048370187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87990122118011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685100 + ... + 13283433.

It is an arithmetic number, because the mean of its divisors is an integer number (12570032312988).

Almost surely, 2^{87990122112011} is an apocalyptic number.

87990122112011 is a deficient number, since it is larger than the sum of its proper divisors (12570136391893).

87990122112011 is a wasteful number, since it uses less digits than its factorization.

87990122112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868421.

The product of its (nonzero) digits is 36288, while the sum is 44.

The spelling of 87990122112011 in words is "eighty-seven trillion, nine hundred ninety billion, one hundred twenty-two million, one hundred twelve thousand, eleven".