31103242060 has 192 divisors, whose sum is σ = 77667932160. Its totient is φ = 10340352000.

The previous prime is 31103242043. The next prime is 31103242061. The reversal of 31103242060 is 6024230113.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (31103242061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16622925 + ... + 16624795.

It is an arithmetic number, because the mean of its divisors is an integer number (404520480).

Almost surely, 2^31103242060 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 31103242060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38833966080).

31103242060 is an abundant number, since it is smaller than the sum of its proper divisors (46564690100).

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

31103242060 is a wasteful number, since it uses less digits than its factorization.

31103242060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048 (or 2046 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31103242060 its reverse (6024230113), we get a palindrome (37127472173).

The spelling of 31103242060 in words is "thirty-one billion, one hundred three million, two hundred forty-two thousand, sixty".