121032031 has 4 divisors (see below), whose sum is σ = 121059792. Its totient is φ = 121004272.

The previous prime is 121032017. The next prime is 121032047. The reversal of 121032031 is 130230121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121032031 is a prime.

It is a super-2 number, since 2×121032031² = 29297505055969922, 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 (121032001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5755 + ... + 16588.

It is an arithmetic number, because the mean of its divisors is an integer number (30264948).

Almost surely, 2^121032031 is an apocalyptic number.

121032031 is a deficient number, since it is larger than the sum of its proper divisors (27761).

121032031 is an equidigital number, since it uses as much as digits as its factorization.

121032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27760.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121032031 is about 11001.4558582035. The cubic root of 121032031 is about 494.6523845864.

Adding to 121032031 its reverse (130230121), we get a palindrome (251262152).

The spelling of 121032031 in words is "one hundred twenty-one million, thirty-two thousand, thirty-one".