31144000122 has 32 divisors (see below), whose sum is σ = 69256695360. Its totient is φ = 10374162480.

The previous prime is 31144000061. The next prime is 31144000183. The reversal of 31144000122 is 22100044113.

It is an interprime number because it is at equal distance from previous prime (31144000061) and next prime (31144000183).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31144000095 and 31144000104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120004 + ... + 276927.

It is an arithmetic number, because the mean of its divisors is an integer number (2164271730).

Almost surely, 2^31144000122 is an apocalyptic number.

31144000122 is an abundant number, since it is smaller than the sum of its proper divisors (38112695238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31144000122 is a wasteful number, since it uses less digits than its factorization.

31144000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398395 (or 398389 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 31144000122 its reverse (22100044113), we get a palindrome (53244044235).

The spelling of 31144000122 in words is "thirty-one billion, one hundred forty-four million, one hundred twenty-two", and thus it is an aban number.