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312131342423 is a prime number
BaseRepresentation
bin1001000101011000111…
…10100101000001010111
31002211122222012002000202
410202230132211001113
520103221110424143
6355220253531115
731356622430525
oct4425436450127
91084588162022
10312131342423
1111041300742a
12505b01a3a9b
132358425bc34
141117038d315
1581bc725ab8
hex48ac7a5057

312131342423 has 2 divisors, whose sum is σ = 312131342424. Its totient is φ = 312131342422.

The previous prime is 312131342339. The next prime is 312131342437. The reversal of 312131342423 is 324243131213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312131342423 - 28 = 312131342167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312131345423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156065671211 + 156065671212.

It is an arithmetic number, because the mean of its divisors is an integer number (156065671212).

Almost surely, 2312131342423 is an apocalyptic number.

312131342423 is a deficient number, since it is larger than the sum of its proper divisors (1).

312131342423 is an equidigital number, since it uses as much as digits as its factorization.

312131342423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

Adding to 312131342423 its reverse (324243131213), we get a palindrome (636374473636).

The spelling of 312131342423 in words is "three hundred twelve billion, one hundred thirty-one million, three hundred forty-two thousand, four hundred twenty-three".