20372231351 has 2 divisors, whose sum is σ = 20372231352. Its totient is φ = 20372231350.

The previous prime is 20372231293. The next prime is 20372231359. The reversal of 20372231351 is 15313227302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20372231351 - 2⁶ = 20372231287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20372231359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10186115675 + 10186115676.

It is an arithmetic number, because the mean of its divisors is an integer number (10186115676).

Almost surely, 2^20372231351 is an apocalyptic number.

20372231351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20372231351 is an equidigital number, since it uses as much as digits as its factorization.

20372231351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

Adding to 20372231351 its reverse (15313227302), we get a palindrome (35685458653).

The spelling of 20372231351 in words is "twenty billion, three hundred seventy-two million, two hundred thirty-one thousand, three hundred fifty-one".