121233951 has 6 divisors (see below), whose sum is σ = 175115720. Its totient is φ = 80822628.

The previous prime is 121233923. The next prime is 121234013. The reversal of 121233951 is 159332121.

It is not a de Polignac number, because 121233951 - 2¹⁰ = 121232927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121233911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6735211 + ... + 6735228.

Almost surely, 2^121233951 is an apocalyptic number.

121233951 is a deficient number, since it is larger than the sum of its proper divisors (53881769).

121233951 is a wasteful number, since it uses less digits than its factorization.

121233951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13470445 (or 13470442 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 121233951 is about 11010.6290011062. The cubic root of 121233951 is about 494.9273110283.

The spelling of 121233951 in words is "one hundred twenty-one million, two hundred thirty-three thousand, nine hundred fifty-one".