631124102122140 has 96 divisors (see below), whose sum is σ = 1989984265758720. Its totient is φ = 148064305478400.

The previous prime is 631124102122121. The next prime is 631124102122141. The reversal of 631124102122140 is 41221201421136.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 631124102122098 and 631124102122107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631124102122141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15423344695 + ... + 15423385614.

It is an arithmetic number, because the mean of its divisors is an integer number (20729002768320).

Almost surely, 2^{631124102122140} is an apocalyptic number.

631124102122140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

631124102122140 is an abundant number, since it is smaller than the sum of its proper divisors (1358860163636580).

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

631124102122140 is a wasteful number, since it uses less digits than its factorization.

631124102122140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30846730363 (or 30846730361 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 631124102122140 its reverse (41221201421136), we get a palindrome (672345303543276).

The spelling of 631124102122140 in words is "six hundred thirty-one trillion, one hundred twenty-four billion, one hundred two million, one hundred twenty-two thousand, one hundred forty".