23130420145231 has 24 divisors (see below), whose sum is σ = 28077340677120. Its totient is φ = 18963622771632.

The previous prime is 23130420145219. The next prime is 23130420145243. The reversal of 23130420145231 is 13254102403132.

It is an interprime number because it is at equal distance from previous prime (23130420145219) and next prime (23130420145243).

It is not a de Polignac number, because 23130420145231 - 2³¹ = 23128272661583 is a prime.

It is a super-2 number, since 2×23130420145231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23130420145193 and 23130420145202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130420145271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52532250 + ... + 52970728.

It is an arithmetic number, because the mean of its divisors is an integer number (1169889194880).

Almost surely, 2^{23130420145231} is an apocalyptic number.

23130420145231 is a deficient number, since it is larger than the sum of its proper divisors (4946920531889).

23130420145231 is a wasteful number, since it uses less digits than its factorization.

23130420145231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485323 (or 485316 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 23130420145231 its reverse (13254102403132), we get a palindrome (36384522548363).

The spelling of 23130420145231 in words is "twenty-three trillion, one hundred thirty billion, four hundred twenty million, one hundred forty-five thousand, two hundred thirty-one".