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3123133501 is a prime number
BaseRepresentation
bin1011101000100111…
…0011110000111101
322001122201121202011
42322021303300331
522344010233001
61233523331221
7140252124325
oct27211636075
98048647664
103123133501
111362a22474
12731b20b11
133aa0677b7
14218ada285
151342b7d51
hexba273c3d

3123133501 has 2 divisors, whose sum is σ = 3123133502. Its totient is φ = 3123133500.

The previous prime is 3123133483. The next prime is 3123133537. The reversal of 3123133501 is 1053313213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2854337476 + 268796025 = 53426^2 + 16395^2 .

It is an emirp because it is prime and its reverse (1053313213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3123133501 - 25 = 3123133469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123133561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561566750 + 1561566751.

It is an arithmetic number, because the mean of its divisors is an integer number (1561566751).

Almost surely, 23123133501 is an apocalyptic number.

It is an amenable number.

3123133501 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123133501 is an equidigital number, since it uses as much as digits as its factorization.

3123133501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 3123133501 is about 55885.0024693567. The cubic root of 3123133501 is about 1461.7177350728.

Adding to 3123133501 its reverse (1053313213), we get a palindrome (4176446714).

The spelling of 3123133501 in words is "three billion, one hundred twenty-three million, one hundred thirty-three thousand, five hundred one".