121011150553994 has 4 divisors (see below), whose sum is σ = 181516725830994. Its totient is φ = 60505575276996.

The previous prime is 121011150553939. The next prime is 121011150554027. The reversal of 121011150553994 is 499355051110121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 107420020395769 + 13591130158225 = 10364363^2 + 3686615^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30252787638497 + ... + 30252787638500.

Almost surely, 2^{121011150553994} is an apocalyptic number.

121011150553994 is a deficient number, since it is larger than the sum of its proper divisors (60505575277000).

121011150553994 is an equidigital number, since it uses as much as digits as its factorization.

121011150553994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60505575276999.

The product of its (nonzero) digits is 243000, while the sum is 47.

The spelling of 121011150553994 in words is "one hundred twenty-one trillion, eleven billion, one hundred fifty million, five hundred fifty-three thousand, nine hundred ninety-four".