31090280699 has 2 divisors, whose sum is σ = 31090280700. Its totient is φ = 31090280698.

The previous prime is 31090280681. The next prime is 31090280717. The reversal of 31090280699 is 99608209013.

It is a balanced prime because it is at equal distance from previous prime (31090280681) and next prime (31090280717).

It is an emirp because it is prime and its reverse (99608209013) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31090280699 is a prime.

It is a super-2 number, since 2×31090280699² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31090288699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15545140349 + 15545140350.

It is an arithmetic number, because the mean of its divisors is an integer number (15545140350).

Almost surely, 2^31090280699 is an apocalyptic number.

31090280699 is a deficient number, since it is larger than the sum of its proper divisors (1).

31090280699 is an equidigital number, since it uses as much as digits as its factorization.

31090280699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 31090280699 in words is "thirty-one billion, ninety million, two hundred eighty thousand, six hundred ninety-nine".