31100020020130 has 8 divisors (see below), whose sum is σ = 55980036036252. Its totient is φ = 12440008008048.

The previous prime is 31100020020071. The next prime is 31100020020131. The reversal of 31100020020130 is 3102002000113.

It can be written as a sum of positive squares in 2 ways, for example, as 30217327826841 + 882692193289 = 5497029^2 + 939517^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31100020020130² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31100020020130.

It is not an unprimeable number, because it can be changed into a prime (31100020020131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1555001000997 + ... + 1555001001016.

Almost surely, 2^{31100020020130} is an apocalyptic number.

31100020020130 is a deficient number, since it is larger than the sum of its proper divisors (24880016016122).

31100020020130 is a wasteful number, since it uses less digits than its factorization.

31100020020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110002002020.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31100020020130 its reverse (3102002000113), we get a palindrome (34202022020243).

The spelling of 31100020020130 in words is "thirty-one trillion, one hundred billion, twenty million, twenty thousand, one hundred thirty".