31301140122 has 96 divisors (see below), whose sum is σ = 82888323840. Its totient is φ = 8725026240.

The previous prime is 31301140109. The next prime is 31301140127. The reversal of 31301140122 is 22104110313.

It is a super-2 number, since 2×31301140122² (a number of 22 digits) contains 22 as substring.

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 = 31301140095 and 31301140104.

It is not an unprimeable number, because it can be changed into a prime (31301140127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35778 + ... + 252749.

It is an arithmetic number, because the mean of its divisors is an integer number (863420040).

Almost surely, 2^31301140122 is an apocalyptic number.

31301140122 is an abundant number, since it is smaller than the sum of its proper divisors (51587183718).

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

31301140122 is a wasteful number, since it uses less digits than its factorization.

31301140122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288593 (or 288580 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31301140122 its reverse (22104110313), we get a palindrome (53405250435).

The spelling of 31301140122 in words is "thirty-one billion, three hundred one million, one hundred forty thousand, one hundred twenty-two".