23000142421 has 2 divisors, whose sum is σ = 23000142422. Its totient is φ = 23000142420.

The previous prime is 23000142377. The next prime is 23000142433. The reversal of 23000142421 is 12424100032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14330484100 + 8669658321 = 119710^2 + 93111^2 .

It is a cyclic number.

It is not a de Polignac number, because 23000142421 - 2¹³ = 23000134229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23000142461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500071210 + 11500071211.

It is an arithmetic number, because the mean of its divisors is an integer number (11500071211).

Almost surely, 2^23000142421 is an apocalyptic number.

It is an amenable number.

23000142421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23000142421 is an equidigital number, since it uses as much as digits as its factorization.

23000142421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 23000142421 its reverse (12424100032), we get a palindrome (35424242453).

The spelling of 23000142421 in words is "twenty-three billion, one hundred forty-two thousand, four hundred twenty-one".