121003951 has 12 divisors (see below), whose sum is σ = 129533904. Its totient is φ = 112996800.

The previous prime is 121003919. The next prime is 121003963. The reversal of 121003951 is 159300121.

It is not a de Polignac number, because 121003951 - 2⁵ = 121003919 is a prime.

It is a super-2 number, since 2×121003951² = 29283912315220802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121003651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23271 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (10794492).

Almost surely, 2^121003951 is an apocalyptic number.

121003951 is a deficient number, since it is larger than the sum of its proper divisors (8529953).

121003951 is an equidigital number, since it uses as much as digits as its factorization.

121003951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830 (or 4811 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 121003951 is about 11000.1795894431. The cubic root of 121003951 is about 494.6141277350.

The spelling of 121003951 in words is "one hundred twenty-one million, three thousand, nine hundred fifty-one".