31042430101 has 2 divisors, whose sum is σ = 31042430102. Its totient is φ = 31042430100.

The previous prime is 31042430051. The next prime is 31042430113. The reversal of 31042430101 is 10103424013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27864289476 + 3178140625 = 166926^2 + 56375^2 .

It is an emirp because it is prime and its reverse (10103424013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31042430101 - 2²⁷ = 30908212373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31042430131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15521215050 + 15521215051.

It is an arithmetic number, because the mean of its divisors is an integer number (15521215051).

Almost surely, 2^31042430101 is an apocalyptic number.

It is an amenable number.

31042430101 is a deficient number, since it is larger than the sum of its proper divisors (1).

31042430101 is an equidigital number, since it uses as much as digits as its factorization.

31042430101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31042430101 its reverse (10103424013), we get a palindrome (41145854114).

The spelling of 31042430101 in words is "thirty-one billion, forty-two million, four hundred thirty thousand, one hundred one".