23201111412 has 72 divisors (see below), whose sum is σ = 59490849600. Its totient is φ = 7622605440.

The previous prime is 23201111411. The next prime is 23201111449. The reversal of 23201111412 is 21411110232.

23201111412 is a `hidden beast` number, since 232 + 0 + 11 + 11 + 412 = 666.

It is a super-4 number, since 4×23201111412⁴ (a number of 43 digits) contains 4444 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201111411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7091337 + ... + 7094607.

It is an arithmetic number, because the mean of its divisors is an integer number (826261800).

Almost surely, 2^23201111412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23201111412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29745424800).

23201111412 is an abundant number, since it is smaller than the sum of its proper divisors (36289738188).

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

23201111412 is a wasteful number, since it uses less digits than its factorization.

23201111412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053 (or 6048 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 23201111412 its reverse (21411110232), we get a palindrome (44612221644).

The spelling of 23201111412 in words is "twenty-three billion, two hundred one million, one hundred eleven thousand, four hundred twelve".