23140421243 has 2 divisors, whose sum is σ = 23140421244. Its totient is φ = 23140421242.

The previous prime is 23140421219. The next prime is 23140421251. The reversal of 23140421243 is 34212404132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23140421243 - 2⁶ = 23140421179 is a prime.

It is not a weakly prime, because it can be changed into another prime (23140421203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11570210621 + 11570210622.

It is an arithmetic number, because the mean of its divisors is an integer number (11570210622).

Almost surely, 2^23140421243 is an apocalyptic number.

23140421243 is a deficient number, since it is larger than the sum of its proper divisors (1).

23140421243 is an equidigital number, since it uses as much as digits as its factorization.

23140421243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 23140421243 its reverse (34212404132), we get a palindrome (57352825375).

The spelling of 23140421243 in words is "twenty-three billion, one hundred forty million, four hundred twenty-one thousand, two hundred forty-three".