20630131431401 has 4 divisors (see below), whose sum is σ = 20634849051012. Its totient is φ = 20625413811792.

The previous prime is 20630131431397. The next prime is 20630131431409. The reversal of 20630131431401 is 10413413103602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5940358171225 + 14689773260176 = 2437285^2 + 3832724^2 .

It is a cyclic number.

It is not a de Polignac number, because 20630131431401 - 2² = 20630131431397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20630131431409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2358803246 + ... + 2358811991.

It is an arithmetic number, because the mean of its divisors is an integer number (5158712262753).

Almost surely, 2^{20630131431401} is an apocalyptic number.

It is an amenable number.

20630131431401 is a deficient number, since it is larger than the sum of its proper divisors (4717619611).

20630131431401 is an equidigital number, since it uses as much as digits as its factorization.

20630131431401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717619610.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 20630131431401 in words is "twenty trillion, six hundred thirty billion, one hundred thirty-one million, four hundred thirty-one thousand, four hundred one".