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23201231213100 = 223524737938911161
BaseRepresentation
bin1010100011001111101010…
…01001010001001000101100
310001011000102200202120110110
411101213311021101020230
511020112110142304400
6121202255400540020
74613143065251403
oct521476511211054
9101130380676413
1023201231213100
11743565018a5a6
122728679481610
13cc3b36235465
145a2d3496c63a
152a37b5ba2e50
hex1519f525122c

23201231213100 has 288 divisors, whose sum is σ = 68920938777600. Its totient is φ = 6023314483200.

The previous prime is 23201231213093. The next prime is 23201231213131. The reversal of 23201231213100 is 131213210232.

It is a super-2 number, since 2×232012312131002 (a number of 28 digits) contains 22 as substring.

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, 2078771520 + ... + 2078782680.

It is an arithmetic number, because the mean of its divisors is an integer number (239308815200).

Almost surely, 223201231213100 is an apocalyptic number.

23201231213100 is a gapful number since it is divisible by the number (20) 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 23201231213100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34460469388800).

23201231213100 is an abundant number, since it is smaller than the sum of its proper divisors (45719707564500).

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

23201231213100 is a wasteful number, since it uses less digits than its factorization.

23201231213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11993 (or 11986 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23201231213100 its reverse (131213210232), we get a palindrome (23332444423332).

The spelling of 23201231213100 in words is "twenty-three trillion, two hundred one billion, two hundred thirty-one million, two hundred thirteen thousand, one hundred".