14331123421 has 2 divisors, whose sum is σ = 14331123422. Its totient is φ = 14331123420.

The previous prime is 14331123409. The next prime is 14331123461. The reversal of 14331123421 is 12432113341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8123416900 + 6207706521 = 90130^2 + 78789^2 .

It is a cyclic number.

It is not a de Polignac number, because 14331123421 - 2²¹ = 14329026269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14331123461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7165561710 + 7165561711.

It is an arithmetic number, because the mean of its divisors is an integer number (7165561711).

Almost surely, 2^14331123421 is an apocalyptic number.

It is an amenable number.

14331123421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14331123421 is an equidigital number, since it uses as much as digits as its factorization.

14331123421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

Adding to 14331123421 its reverse (12432113341), we get a palindrome (26763236762).

The spelling of 14331123421 in words is "fourteen billion, three hundred thirty-one million, one hundred twenty-three thousand, four hundred twenty-one".