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23100200101220 = 225112329177788589
BaseRepresentation
bin1010100000010011011110…
…01110001010010101100100
310000210100122122220022121212
411100021233032022111210
511011433202211214340
6121044030241330552
74602635331052664
oct520115716122544
9100710578808555
1023100200101220
1173a6815810920
122710b82336a58
13cb7454c14758
1459c0ac9c21a4
152a0d5118da65
hex15026f38a564

23100200101220 has 192 divisors, whose sum is σ = 57158324697600. Its totient is φ = 7753335152640.

The previous prime is 23100200101217. The next prime is 23100200101291. The reversal of 23100200101220 is 2210100200132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23100200101195 and 23100200101204.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 260712686 + ... + 260801274.

It is an arithmetic number, because the mean of its divisors is an integer number (297699607800).

Almost surely, 223100200101220 is an apocalyptic number.

23100200101220 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 23100200101220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28579162348800).

23100200101220 is an abundant number, since it is smaller than the sum of its proper divisors (34058124596380).

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

23100200101220 is a wasteful number, since it uses less digits than its factorization.

23100200101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90438 (or 90436 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23100200101220 its reverse (2210100200132), we get a palindrome (25310300301352).

The spelling of 23100200101220 in words is "twenty-three trillion, one hundred billion, two hundred million, one hundred one thousand, two hundred twenty".