31124117050 has 24 divisors (see below), whose sum is σ = 62344001916. Its totient is φ = 11491981440.

The previous prime is 31124117041. The next prime is 31124117051. The reversal of 31124117050 is 5071142113.

It can be written as a sum of positive squares in 6 ways, for example, as 8255721321 + 22868395729 = 90861^2 + 151223^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (31124117051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23940979 + ... + 23942278.

Almost surely, 2^31124117050 is an apocalyptic number.

31124117050 is an abundant number, since it is smaller than the sum of its proper divisors (31219884866).

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

31124117050 is a wasteful number, since it uses less digits than its factorization.

31124117050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47883282 (or 47883277 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

Adding to 31124117050 its reverse (5071142113), we get a palindrome (36195259163).

The spelling of 31124117050 in words is "thirty-one billion, one hundred twenty-four million, one hundred seventeen thousand, fifty".