121033812031 has 4 divisors (see below), whose sum is σ = 132036885864. Its totient is φ = 110030738200.

The previous prime is 121033811993. The next prime is 121033812049. The reversal of 121033812031 is 130218330121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121033812031 - 2¹⁵ = 121033779263 is a prime.

It is a super-2 number, since 2×121033812031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121033811987 and 121033812005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121033812071) 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, 5501536900 + ... + 5501536921.

It is an arithmetic number, because the mean of its divisors is an integer number (33009221466).

Almost surely, 2^121033812031 is an apocalyptic number.

121033812031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121033812031 is a deficient number, since it is larger than the sum of its proper divisors (11003073833).

121033812031 is a wasteful number, since it uses less digits than its factorization.

121033812031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003073832.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 121033812031 in words is "one hundred twenty-one billion, thirty-three million, eight hundred twelve thousand, thirty-one".