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12302041031 = 71757434433
BaseRepresentation
bin10110111010100001…
…00011111111000111
31011202100110102202022
423131100203333013
5200143310303111
65352415233355
7613566423560
oct133520437707
934670412668
1012302041031
1152431aa565
122473b1885b
1312108c8627
14849ba3167
154c00342db
hex2dd423fc7

12302041031 has 4 divisors (see below), whose sum is σ = 14059475472. Its totient is φ = 10544606592.

The previous prime is 12302041013. The next prime is 12302041043. The reversal of 12302041031 is 13014020321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13014020321 = 26349482967.

It is a cyclic number.

It is not a de Polignac number, because 12302041031 - 222 = 12297846727 is a prime.

It is a super-2 number, since 2×123020410312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302041001) 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, 878717210 + ... + 878717223.

It is an arithmetic number, because the mean of its divisors is an integer number (3514868868).

Almost surely, 212302041031 is an apocalyptic number.

12302041031 is a deficient number, since it is larger than the sum of its proper divisors (1757434441).

12302041031 is an equidigital number, since it uses as much as digits as its factorization.

12302041031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757434440.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12302041031 its reverse (13014020321), we get a palindrome (25316061352).

The spelling of 12302041031 in words is "twelve billion, three hundred two million, forty-one thousand, thirty-one".

Divisors: 1 7 1757434433 12302041031