23311212203020 has 24 divisors (see below), whose sum is σ = 55946909287584. Its totient is φ = 7992415612416.

The previous prime is 23311212203003. The next prime is 23311212203023. The reversal of 23311212203020 is 2030221211332.

It is a super-2 number, since 2×23311212203020² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23311212202982 and 23311212203000.

It is not an unprimeable number, because it can be changed into a prime (23311212203023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83254329157 + ... + 83254329436.

It is an arithmetic number, because the mean of its divisors is an integer number (2331121220316).

Almost surely, 2^{23311212203020} is an apocalyptic number.

23311212203020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23311212203020 is an abundant number, since it is smaller than the sum of its proper divisors (32635697084564).

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

23311212203020 is a wasteful number, since it uses less digits than its factorization.

23311212203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166508658609 (or 166508658607 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23311212203020 its reverse (2030221211332), we get a palindrome (25341433414352).

The spelling of 23311212203020 in words is "twenty-three trillion, three hundred eleven billion, two hundred twelve million, two hundred three thousand, twenty".