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102100231200101 = 472172345344683
BaseRepresentation
bin10111001101110000010000…
…000000110001110101100101
3111101111200112122211220102012
4113031300100000301311211
5101340302233141400401
61001052110530124005
730335332623610511
oct2715602000616545
9441450478756365
10102100231200101
112a594512846122
12b54b860a20605
1344c801a079334
141b2d96b307141
15bc0cdbe558bb
hex5cdc10031d65

102100231200101 has 4 divisors (see below), whose sum is σ = 104272576544832. Its totient is φ = 99927885855372.

The previous prime is 102100231200061. The next prime is 102100231200131. The reversal of 102100231200101 is 101002132001201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102100231200101 is a prime.

It is a super-2 number, since 2×1021002312001012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100231200131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086172672295 + ... + 1086172672388.

It is an arithmetic number, because the mean of its divisors is an integer number (26068144136208).

Almost surely, 2102100231200101 is an apocalyptic number.

It is an amenable number.

102100231200101 is a deficient number, since it is larger than the sum of its proper divisors (2172345344731).

102100231200101 is an equidigital number, since it uses as much as digits as its factorization.

102100231200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172345344730.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 102100231200101 its reverse (101002132001201), we get a palindrome (203102363201302).

The spelling of 102100231200101 in words is "one hundred two trillion, one hundred billion, two hundred thirty-one million, two hundred thousand, one hundred one".

Divisors: 1 47 2172345344683 102100231200101