31326462021140 has 288 divisors, whose sum is σ = 80413792284672. Its totient is φ = 10172212300800.

The previous prime is 31326462021119. The next prime is 31326462021163. The reversal of 31326462021140 is 4112026462313.

It is a self number, because there is not a number n which added to its sum of digits gives 31326462021140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4054151957 + ... + 4054159683.

It is an arithmetic number, because the mean of its divisors is an integer number (279214556544).

Almost surely, 2^{31326462021140} 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 31326462021140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40206896142336).

31326462021140 is an abundant number, since it is smaller than the sum of its proper divisors (49087330263532).

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

31326462021140 is a wasteful number, since it uses less digits than its factorization.

31326462021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11959 (or 11946 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 31326462021140 its reverse (4112026462313), we get a palindrome (35438488483453).

The spelling of 31326462021140 in words is "thirty-one trillion, three hundred twenty-six billion, four hundred sixty-two million, twenty-one thousand, one hundred forty".