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103213210123 = 1917331400429
BaseRepresentation
bin110000000011111111…
…1001001101000001011
3100212102002212022220001
41200013333021220023
53142340040210443
6115225425143431
710312501545022
oct1400777115013
9325362768801
10103213210123
113a855191461
1218005a8ab77
13996b424cca
144dd1ac78b9
152a41396d4d
hex1807fc9a0b

103213210123 has 8 divisors (see below), whose sum is σ = 109273496400. Its totient is φ = 97215725088.

The previous prime is 103213210013. The next prime is 103213210153. The reversal of 103213210123 is 321012312301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103213210123 - 217 = 103213079051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103213210123.

It is not an unprimeable number, because it can be changed into a prime (103213210153) 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, 15696928 + ... + 15703501.

It is an arithmetic number, because the mean of its divisors is an integer number (13659187050).

Almost surely, 2103213210123 is an apocalyptic number.

103213210123 is a deficient number, since it is larger than the sum of its proper divisors (6060286277).

103213210123 is a wasteful number, since it uses less digits than its factorization.

103213210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31400621.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103213210123 its reverse (321012312301), we get a palindrome (424225522424).

The spelling of 103213210123 in words is "one hundred three billion, two hundred thirteen million, two hundred ten thousand, one hundred twenty-three".

Divisors: 1 19 173 3287 31400429 596608151 5432274217 103213210123