Search a number
-
+
103111203131 = 156796576389
BaseRepresentation
bin110000000000111101…
…0000001100100111011
3100212010222220211121022
41200001322001210323
53142132432000011
6115211342533055
710310122523366
oct1400172014473
9325128824538
10103111203131
113a80264a062
1217b9789718b
13995325ab41
144dc23330dd
152a374478db
hex1801e8193b

103111203131 has 4 divisors (see below), whose sum is σ = 103117795200. Its totient is φ = 103104611064.

The previous prime is 103111203109. The next prime is 103111203233. The reversal of 103111203131 is 131302111301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103111203131 - 210 = 103111202107 is a prime.

It is a super-2 number, since 2×1031112031312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103111200131) 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, 3272516 + ... + 3303873.

It is an arithmetic number, because the mean of its divisors is an integer number (25779448800).

Almost surely, 2103111203131 is an apocalyptic number.

103111203131 is a deficient number, since it is larger than the sum of its proper divisors (6592069).

103111203131 is an equidigital number, since it uses as much as digits as its factorization.

103111203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6592068.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 103111203131 its reverse (131302111301), we get a palindrome (234413314432).

The spelling of 103111203131 in words is "one hundred three billion, one hundred eleven million, two hundred three thousand, one hundred thirty-one".

Divisors: 1 15679 6576389 103111203131