20151451373 has 2 divisors, whose sum is σ = 20151451374. Its totient is φ = 20151451372.

The previous prime is 20151451351. The next prime is 20151451379. The reversal of 20151451373 is 37315415102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17015115364 + 3136336009 = 130442^2 + 56003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20151451373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20151451379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075725686 + 10075725687.

It is an arithmetic number, because the mean of its divisors is an integer number (10075725687).

Almost surely, 2^20151451373 is an apocalyptic number.

It is an amenable number.

20151451373 is a deficient number, since it is larger than the sum of its proper divisors (1).

20151451373 is an equidigital number, since it uses as much as digits as its factorization.

20151451373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

Adding to 20151451373 its reverse (37315415102), we get a palindrome (57466866475).

The spelling of 20151451373 in words is "twenty billion, one hundred fifty-one million, four hundred fifty-one thousand, three hundred seventy-three".