121050513 has 12 divisors (see below), whose sum is σ = 176110480. Its totient is φ = 80118936.

The previous prime is 121050511. The next prime is 121050529. The reversal of 121050513 is 315050121.

It is not a de Polignac number, because 121050513 - 2¹ = 121050511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121050511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47131 + ... + 49632.

Almost surely, 2^121050513 is an apocalyptic number.

It is an amenable number.

121050513 is a deficient number, since it is larger than the sum of its proper divisors (55059967).

121050513 is a wasteful number, since it uses less digits than its factorization.

121050513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96908 (or 96905 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 121050513 is about 11002.2958058762. The cubic root of 121050513 is about 494.6775616683.

It can be divided in two parts, 12 and 1050513, that added together give a triangular number (1050525 = T₁₄₄₉).

The spelling of 121050513 in words is "one hundred twenty-one million, fifty thousand, five hundred thirteen".