121303020223031 has 4 divisors (see below), whose sum is σ = 121307412582192. Its totient is φ = 121298627863872.

The previous prime is 121303020223003. The next prime is 121303020223043. The reversal of 121303020223031 is 130322020303121.

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-121303020223031 is a prime.

It is a super-2 number, since 2×121303020223031² (a number of 29 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 = 121303020222988 and 121303020223006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303020223061) 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, 2196138155 + ... + 2196193388.

It is an arithmetic number, because the mean of its divisors is an integer number (30326853145548).

Almost surely, 2^{121303020223031} is an apocalyptic number.

121303020223031 is a deficient number, since it is larger than the sum of its proper divisors (4392359161).

121303020223031 is an equidigital number, since it uses as much as digits as its factorization.

121303020223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392359160.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121303020223031 its reverse (130322020303121), we get a palindrome (251625040526152).

The spelling of 121303020223031 in words is "one hundred twenty-one trillion, three hundred three billion, twenty million, two hundred twenty-three thousand, thirty-one".