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12572011631 is a prime number
BaseRepresentation
bin10111011010101100…
…11010110001101111
31012110011110100210102
423231112122301233
5201221413333011
65435301501315
7623355223064
oct135526326157
935404410712
1012572011631
115371633463
12252a41183b
131254810c4a
1487399ac6b
154d8ab073b
hex2ed59ac6f

12572011631 has 2 divisors, whose sum is σ = 12572011632. Its totient is φ = 12572011630.

The previous prime is 12572011579. The next prime is 12572011643. The reversal of 12572011631 is 13611027521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12572011631 - 26 = 12572011567 is a prime.

It is a super-2 number, since 2×125720116312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12572011594 and 12572011603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12572011691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6286005815 + 6286005816.

It is an arithmetic number, because the mean of its divisors is an integer number (6286005816).

Almost surely, 212572011631 is an apocalyptic number.

12572011631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12572011631 is an equidigital number, since it uses as much as digits as its factorization.

12572011631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The spelling of 12572011631 in words is "twelve billion, five hundred seventy-two million, eleven thousand, six hundred thirty-one".