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103120314523 = 791305320437
BaseRepresentation
bin110000000001001110…
…0110010000010011011
3100212011122001202002021
41200002130302002123
53142142300031043
6115212310115311
710310263132252
oct1400234620233
9325148052067
10103120314523
113a807802636
1217b9a94bb37
1399550cb0b5
144dc3625799
152a381473ed
hex180273209b

103120314523 has 4 divisors (see below), whose sum is σ = 104425635040. Its totient is φ = 101814994008.

The previous prime is 103120314509. The next prime is 103120314541. The reversal of 103120314523 is 325413021301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325413021301 = 2122115334481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103120314523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103120314823) 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, 652660140 + ... + 652660297.

It is an arithmetic number, because the mean of its divisors is an integer number (26106408760).

Almost surely, 2103120314523 is an apocalyptic number.

103120314523 is a deficient number, since it is larger than the sum of its proper divisors (1305320517).

103120314523 is an equidigital number, since it uses as much as digits as its factorization.

103120314523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305320516.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 103120314523 its reverse (325413021301), we get a palindrome (428533335824).

The spelling of 103120314523 in words is "one hundred three billion, one hundred twenty million, three hundred fourteen thousand, five hundred twenty-three".

Divisors: 1 79 1305320437 103120314523