121850631 has 12 divisors (see below), whose sum is σ = 201150352. Its totient is φ = 69628896.

The previous prime is 121850623. The next prime is 121850633. The reversal of 121850631 is 136058121.

121850631 is a `hidden beast` number, since 1 + 21 + 8 + 5 + 0 + 631 = 666.

It is not a de Polignac number, because 121850631 - 2³ = 121850623 is a prime.

It is a super-2 number, since 2×121850631² = 29695152550196322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121850595 and 121850604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121850633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 967006 + ... + 967131.

Almost surely, 2^121850631 is an apocalyptic number.

121850631 is a deficient number, since it is larger than the sum of its proper divisors (79299721).

121850631 is a wasteful number, since it uses less digits than its factorization.

121850631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934150 (or 1934147 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 121850631 is about 11038.5973293712. The cubic root of 121850631 is about 495.7650733956.

The spelling of 121850631 in words is "one hundred twenty-one million, eight hundred fifty thousand, six hundred thirty-one".