121153031 has 4 divisors (see below), whose sum is σ = 121236864. Its totient is φ = 121069200.

The previous prime is 121153009. The next prime is 121153037. The reversal of 121153031 is 130351121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130351121 = 17 ⋅7667713.

It is a cyclic number.

It is not a de Polignac number, because 121153031 - 2²⁶ = 54044167 is a prime.

It is a super-2 number, since 2×121153031² = 29356113840973922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121153037) 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 3 ways as a sum of consecutive naturals, for example, 39710 + ... + 42651.

It is an arithmetic number, because the mean of its divisors is an integer number (30309216).

Almost surely, 2^121153031 is an apocalyptic number.

121153031 is a deficient number, since it is larger than the sum of its proper divisors (83833).

121153031 is an equidigital number, since it uses as much as digits as its factorization.

121153031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83832.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 121153031 is about 11006.9537566031. The cubic root of 121153031 is about 494.8171701764.

The spelling of 121153031 in words is "one hundred twenty-one million, one hundred fifty-three thousand, thirty-one".