31020230011320 has 192 divisors, whose sum is σ = 110263548002400. Its totient is φ = 7500723624960.

The previous prime is 31020230011313. The next prime is 31020230011349. The reversal of 31020230011320 is 2311003202013.

31020230011320 is a `hidden beast` number, since 3 + 10 + 20 + 2 + 300 + 11 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31020230011293 and 31020230011302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8528187 + ... + 11609066.

Almost surely, 2^{31020230011320} is an apocalyptic number.

31020230011320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31020230011320 is an abundant number, since it is smaller than the sum of its proper divisors (79243317991080).

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

31020230011320 is a wasteful number, since it uses less digits than its factorization.

31020230011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20137670 (or 20137663 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31020230011320 its reverse (2311003202013), we get a palindrome (33331233213333).

The spelling of 31020230011320 in words is "thirty-one trillion, twenty billion, two hundred thirty million, eleven thousand, three hundred twenty".