31123341024 has 96 divisors (see below), whose sum is σ = 84608284320. Its totient is φ = 10005768192.

The previous prime is 31123341019. The next prime is 31123341049. The reversal of 31123341024 is 42014332113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 31123340985 and 31123341003.

It is a congruent number.

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, 2770042 + ... + 2781254.

It is an arithmetic number, because the mean of its divisors is an integer number (881336295).

Almost surely, 2^31123341024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31123341024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42304142160).

31123341024 is an abundant number, since it is smaller than the sum of its proper divisors (53484943296).

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

31123341024 is a wasteful number, since it uses less digits than its factorization.

31123341024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12252 (or 12244 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31123341024 its reverse (42014332113), we get a palindrome (73137673137).

The spelling of 31123341024 in words is "thirty-one billion, one hundred twenty-three million, three hundred forty-one thousand, twenty-four".