31112244101 has 4 divisors (see below), whose sum is σ = 31124539104. Its totient is φ = 31099949100.

The previous prime is 31112244083. The next prime is 31112244103. The reversal of 31112244101 is 10144221113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31112244101 - 2²⁶ = 31045135237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112244103) 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, 6143705 + ... + 6148766.

It is an arithmetic number, because the mean of its divisors is an integer number (7781134776).

Almost surely, 2^31112244101 is an apocalyptic number.

It is an amenable number.

31112244101 is a deficient number, since it is larger than the sum of its proper divisors (12295003).

31112244101 is a wasteful number, since it uses less digits than its factorization.

31112244101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295002.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 31112244101 its reverse (10144221113), we get a palindrome (41256465214).

The spelling of 31112244101 in words is "thirty-one billion, one hundred twelve million, two hundred forty-four thousand, one hundred one".