1302312122031 has 4 divisors (see below), whose sum is σ = 1736416162712. Its totient is φ = 868208081352.

The previous prime is 1302312122011. The next prime is 1302312122039. The reversal of 1302312122031 is 1302212132031.

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

It is not a de Polignac number, because 1302312122031 - 2¹⁰ = 1302312121007 is a prime.

It is a super-2 number, since 2×1302312122031² (a number of 25 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 = 1302312121989 and 1302312122007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302312122039) 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, 217052020336 + ... + 217052020341.

It is an arithmetic number, because the mean of its divisors is an integer number (434104040678).

Almost surely, 2^{1302312122031} is an apocalyptic number.

1302312122031 is a deficient number, since it is larger than the sum of its proper divisors (434104040681).

1302312122031 is an equidigital number, since it uses as much as digits as its factorization.

1302312122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434104040680.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1302312122031 its reverse (1302212132031), we get a palindrome (2604524254062).

The spelling of 1302312122031 in words is "one trillion, three hundred two billion, three hundred twelve million, one hundred twenty-two thousand, thirty-one".