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2142310031 is a prime number
BaseRepresentation
bin111111110110001…
…0000111010001111
312112022010121212222
41333230100322033
513341412410111
6552325045555
7104042222561
oct17754207217
95468117788
102142310031
119aa307264
124b95568bb
13281ab2c94
14164741331
15c81237db
hex7fb10e8f

2142310031 has 2 divisors, whose sum is σ = 2142310032. Its totient is φ = 2142310030.

The previous prime is 2142309997. The next prime is 2142310039. The reversal of 2142310031 is 1300132412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2142310031 is a prime.

It is a super-2 number, since 2×21423100312 = 9178984537846441922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2142309991 and 2142310009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142310039) 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, 1071155015 + 1071155016.

It is an arithmetic number, because the mean of its divisors is an integer number (1071155016).

Almost surely, 22142310031 is an apocalyptic number.

2142310031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142310031 is an equidigital number, since it uses as much as digits as its factorization.

2142310031 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2142310031 is about 46285.0951279135. The cubic root of 2142310031 is about 1289.1222582998.

Adding to 2142310031 its reverse (1300132412), we get a palindrome (3442442443).

The spelling of 2142310031 in words is "two billion, one hundred forty-two million, three hundred ten thousand, thirty-one".