31240201222104 has 128 divisors (see below), whose sum is σ = 90845768832000. Its totient is φ = 8767369290240.

The previous prime is 31240201222037. The next prime is 31240201222133. The reversal of 31240201222104 is 40122210204213.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5353722 + ... + 9546870.

It is an arithmetic number, because the mean of its divisors is an integer number (709732569000).

Almost surely, 2^{31240201222104} 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 31240201222104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45422884416000).

31240201222104 is an abundant number, since it is smaller than the sum of its proper divisors (59605567609896).

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

31240201222104 is a wasteful number, since it uses less digits than its factorization.

31240201222104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193953 (or 4193949 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31240201222104 its reverse (40122210204213), we get a palindrome (71362411426317).

The spelling of 31240201222104 in words is "thirty-one trillion, two hundred forty billion, two hundred one million, two hundred twenty-two thousand, one hundred four".