121006117151 has 4 divisors (see below), whose sum is σ = 123957485904. Its totient is φ = 118054748400.

The previous prime is 121006117117. The next prime is 121006117159. The reversal of 121006117151 is 151711600121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121006117151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121006117151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121006117159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1475684315 + ... + 1475684396.

It is an arithmetic number, because the mean of its divisors is an integer number (30989371476).

Almost surely, 2^121006117151 is an apocalyptic number.

121006117151 is a deficient number, since it is larger than the sum of its proper divisors (2951368753).

121006117151 is an equidigital number, since it uses as much as digits as its factorization.

121006117151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951368752.

The product of its (nonzero) digits is 420, while the sum is 26.

Adding to 121006117151 its reverse (151711600121), we get a palindrome (272717717272).

The spelling of 121006117151 in words is "one hundred twenty-one billion, six million, one hundred seventeen thousand, one hundred fifty-one".