10231111123020 has 288 divisors, whose sum is σ = 33109317259200. Its totient is φ = 2548376911872.

The previous prime is 10231111123007. The next prime is 10231111123133. The reversal of 10231111123020 is 2032111113201.

10231111123020 is a `hidden beast` number, since 10 + 2 + 311 + 111 + 230 + 2 + 0 = 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 = 10231111122984 and 10231111123002.

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, 278781312 + ... + 278818008.

It is an arithmetic number, because the mean of its divisors is an integer number (114962907150).

Almost surely, 2^{10231111123020} is an apocalyptic number.

10231111123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10231111123020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16554658629600).

10231111123020 is an abundant number, since it is smaller than the sum of its proper divisors (22878206136180).

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

10231111123020 is a wasteful number, since it uses less digits than its factorization.

10231111123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37417 (or 37412 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 10231111123020 its reverse (2032111113201), we get a palindrome (12263222236221).

The spelling of 10231111123020 in words is "ten trillion, two hundred thirty-one billion, one hundred eleven million, one hundred twenty-three thousand, twenty".