23111001301020 has 96 divisors (see below), whose sum is σ = 64745453606400. Its totient is φ = 6159634677504.

The previous prime is 23111001301009. The next prime is 23111001301027. The reversal of 23111001301020 is 2010310011132.

It is a happy number.

It is a super-2 number, since 2×23111001301020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111001301027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1016884897 + ... + 1016907623.

It is an arithmetic number, because the mean of its divisors is an integer number (674431808400).

Almost surely, 2^{23111001301020} is an apocalyptic number.

23111001301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23111001301020 is an abundant number, since it is smaller than the sum of its proper divisors (41634452305380).

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

23111001301020 is a wasteful number, since it uses less digits than its factorization.

23111001301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31067 (or 31065 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 23111001301020 its reverse (2010310011132), we get a palindrome (25121311312152).

The spelling of 23111001301020 in words is "twenty-three trillion, one hundred eleven billion, one million, three hundred one thousand, twenty".