20101302631723 has 2 divisors, whose sum is σ = 20101302631724. Its totient is φ = 20101302631722.

The previous prime is 20101302631721. The next prime is 20101302631727. The reversal of 20101302631723 is 32713620310102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20101302631723 - 2¹ = 20101302631721 is a prime.

It is a super-2 number, since 2×20101302631723² (a number of 27 digits) contains 22 as substring.

Together with 20101302631721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20101302631721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050651315861 + 10050651315862.

It is an arithmetic number, because the mean of its divisors is an integer number (10050651315862).

Almost surely, 2^{20101302631723} is an apocalyptic number.

20101302631723 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101302631723 is an equidigital number, since it uses as much as digits as its factorization.

20101302631723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 20101302631723 its reverse (32713620310102), we get a palindrome (52814922941825).

The spelling of 20101302631723 in words is "twenty trillion, one hundred one billion, three hundred two million, six hundred thirty-one thousand, seven hundred twenty-three".