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312210142031 is a prime number
BaseRepresentation
bin1001000101100010010…
…11001011001101001111
31002211212110110111202202
410202301023023031033
520103401244021111
6355232150512115
731361600264144
oct4426113131517
91084773414682
10312210142031
11110453538777
125061266563b
132359768bb18
141117aa223cb
1581c45ddb3b
hex48b12cb34f

312210142031 has 2 divisors, whose sum is σ = 312210142032. Its totient is φ = 312210142030.

The previous prime is 312210142021. The next prime is 312210142061. The reversal of 312210142031 is 130241012213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312210142031 - 26 = 312210141967 is a prime.

It is a super-2 number, since 2×3122101420312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312210141994 and 312210142012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312210142021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156105071015 + 156105071016.

It is an arithmetic number, because the mean of its divisors is an integer number (156105071016).

Almost surely, 2312210142031 is an apocalyptic number.

312210142031 is a deficient number, since it is larger than the sum of its proper divisors (1).

312210142031 is an equidigital number, since it uses as much as digits as its factorization.

312210142031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 312210142031 its reverse (130241012213), we get a palindrome (442451154244).

The spelling of 312210142031 in words is "three hundred twelve billion, two hundred ten million, one hundred forty-two thousand, thirty-one".