31124106125142 has 32 divisors (see below), whose sum is σ = 64521214696800. Its totient is φ = 9997273993728.

The previous prime is 31124106125131. The next prime is 31124106125221. The reversal of 31124106125142 is 24152160142113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175622803 + ... + 175799934.

It is an arithmetic number, because the mean of its divisors is an integer number (2016287959275).

Almost surely, 2^{31124106125142} is an apocalyptic number.

31124106125142 is an abundant number, since it is smaller than the sum of its proper divisors (33397108571658).

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

31124106125142 is a wasteful number, since it uses less digits than its factorization.

31124106125142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351423280.

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 31124106125142 its reverse (24152160142113), we get a palindrome (55276266267255).

The spelling of 31124106125142 in words is "thirty-one trillion, one hundred twenty-four billion, one hundred six million, one hundred twenty-five thousand, one hundred forty-two".