121424031 has 24 divisors (see below), whose sum is σ = 178017840. Its totient is φ = 79747200.

The previous prime is 121424021. The next prime is 121424053. The reversal of 121424031 is 130424121.

It is not a de Polignac number, because 121424031 - 2⁵ = 121423999 is a prime.

It is a super-2 number, since 2×121424031² = 29487590608577922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121423995 and 121424013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121424021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213115 + ... + 213683.

It is an arithmetic number, because the mean of its divisors is an integer number (7417410).

Almost surely, 2^121424031 is an apocalyptic number.

121424031 is a deficient number, since it is larger than the sum of its proper divisors (56593809).

121424031 is a wasteful number, since it uses less digits than its factorization.

121424031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121424031 is about 11019.2572798715. The cubic root of 121424031 is about 495.1858377827.

Adding to 121424031 its reverse (130424121), we get a palindrome (251848152).

The spelling of 121424031 in words is "one hundred twenty-one million, four hundred twenty-four thousand, thirty-one".