20311032020130 has 256 divisors, whose sum is σ = 57969604800000. Its totient is φ = 5108777132544.

The previous prime is 20311032020107. The next prime is 20311032020137. The reversal of 20311032020130 is 3102023011302.

20311032020130 is a `hidden beast` number, since 2 + 0 + 3 + 110 + 320 + 201 + 30 = 666.

It is a super-2 number, since 2×20311032020130² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (20311032020137) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 95049646 + ... + 95263094.

It is an arithmetic number, because the mean of its divisors is an integer number (226443768750).

Almost surely, 2^{20311032020130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20311032020130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28984802400000).

20311032020130 is an abundant number, since it is smaller than the sum of its proper divisors (37658572779870).

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

20311032020130 is a wasteful number, since it uses less digits than its factorization.

20311032020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213725 (or 213707 counting only the distinct ones).

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

Adding to 20311032020130 its reverse (3102023011302), we get a palindrome (23413055031432).

The spelling of 20311032020130 in words is "twenty trillion, three hundred eleven billion, thirty-two million, twenty thousand, one hundred thirty".