121301020031 has 4 divisors (see below), whose sum is σ = 122045198232. Its totient is φ = 120556841832.

The previous prime is 121301019991. The next prime is 121301020033. The reversal of 121301020031 is 130020103121.

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 121301020031 - 2²⁶ = 121233911167 is a prime.

It is a super-2 number, since 2×121301020031² (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 = 121301019988 and 121301020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301020033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372088856 + ... + 372089181.

It is an arithmetic number, because the mean of its divisors is an integer number (30511299558).

Almost surely, 2^121301020031 is an apocalyptic number.

121301020031 is a deficient number, since it is larger than the sum of its proper divisors (744178201).

121301020031 is an equidigital number, since it uses as much as digits as its factorization.

121301020031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744178200.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 121301020031 its reverse (130020103121), we get a palindrome (251321123152).

The spelling of 121301020031 in words is "one hundred twenty-one billion, three hundred one million, twenty thousand, thirty-one".