31101240022 has 4 divisors (see below), whose sum is σ = 46651860036. Its totient is φ = 15550620010.

The previous prime is 31101240013. The next prime is 31101240029. The reversal of 31101240022 is 22004210113.

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

It is a junction number, because it is equal to n+sod(n) for n = 31101239978 and 31101240005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101240029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775310004 + ... + 7775310007.

It is an arithmetic number, because the mean of its divisors is an integer number (11662965009).

Almost surely, 2^31101240022 is an apocalyptic number.

31101240022 is a deficient number, since it is larger than the sum of its proper divisors (15550620014).

31101240022 is a wasteful number, since it uses less digits than its factorization.

31101240022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15550620013.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 31101240022 its reverse (22004210113), we get a palindrome (53105450135).

The spelling of 31101240022 in words is "thirty-one billion, one hundred one million, two hundred forty thousand, twenty-two".