23102031121331 has 4 divisors (see below), whose sum is σ = 23665495295064. Its totient is φ = 22538566947600.

The previous prime is 23102031121271. The next prime is 23102031121373. The reversal of 23102031121331 is 13312113020132.

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-23102031121331 is a prime.

It is a super-2 number, since 2×23102031121331² (a number of 28 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 = 23102031121297 and 23102031121306.

It is not an unprimeable number, because it can be changed into a prime (23102031121381) 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, 281732086805 + ... + 281732086886.

It is an arithmetic number, because the mean of its divisors is an integer number (5916373823766).

Almost surely, 2^{23102031121331} is an apocalyptic number.

23102031121331 is a deficient number, since it is larger than the sum of its proper divisors (563464173733).

23102031121331 is an equidigital number, since it uses as much as digits as its factorization.

23102031121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563464173732.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 23102031121331 its reverse (13312113020132), we get a palindrome (36414144141463).

The spelling of 23102031121331 in words is "twenty-three trillion, one hundred two billion, thirty-one million, one hundred twenty-one thousand, three hundred thirty-one".