12303021222031 has 4 divisors (see below), whose sum is σ = 12304399103200. Its totient is φ = 12301643340864.

The previous prime is 12303021221993. The next prime is 12303021222067. The reversal of 12303021222031 is 13022212030321.

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-12303021222031 is a prime.

It is a super-2 number, since 2×12303021222031² (a number of 27 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 = 12303021221993 and 12303021222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303021222731) 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, 688927191 + ... + 688945048.

It is an arithmetic number, because the mean of its divisors is an integer number (3076099775800).

Almost surely, 2^{12303021222031} is an apocalyptic number.

12303021222031 is a deficient number, since it is larger than the sum of its proper divisors (1377881169).

12303021222031 is an equidigital number, since it uses as much as digits as its factorization.

12303021222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377881168.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12303021222031 its reverse (13022212030321), we get a palindrome (25325233252352).

The spelling of 12303021222031 in words is "twelve trillion, three hundred three billion, twenty-one million, two hundred twenty-two thousand, thirty-one".