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3131030107 is a prime number
BaseRepresentation
bin1011101010011111…
…1011101001011011
322002012120210212001
42322213323221123
522403020430412
61234404501431
7140406213442
oct27247735133
98065523761
103131030107
111367426297
127346aa877
133ab8a0b4a
14219b93d59
15134d27957
hexba9fba5b

3131030107 has 2 divisors, whose sum is σ = 3131030108. Its totient is φ = 3131030106.

The previous prime is 3131030087. The next prime is 3131030137. The reversal of 3131030107 is 7010301313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3131030107 - 211 = 3131028059 is a prime.

It is not a weakly prime, because it can be changed into another prime (3131030137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565515053 + 1565515054.

It is an arithmetic number, because the mean of its divisors is an integer number (1565515054).

Almost surely, 23131030107 is an apocalyptic number.

3131030107 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131030107 is an equidigital number, since it uses as much as digits as its factorization.

3131030107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 3131030107 is about 55955.6083605567. The cubic root of 3131030107 is about 1462.9486456814.

The spelling of 3131030107 in words is "three billion, one hundred thirty-one million, thirty thousand, one hundred seven".