990311341 has 2 divisors, whose sum is σ = 990311342. Its totient is φ = 990311340.

The previous prime is 990311323. The next prime is 990311347. The reversal of 990311341 is 143113099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 730134441 + 260176900 = 27021^2 + 16130^2 .

It is a cyclic number.

It is not a de Polignac number, because 990311341 - 2²¹ = 988214189 is a prime.

It is a super-2 number, since 2×990311341² = 1961433104226436562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990311347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495155670 + 495155671.

It is an arithmetic number, because the mean of its divisors is an integer number (495155671).

Almost surely, 2^990311341 is an apocalyptic number.

It is an amenable number.

990311341 is a deficient number, since it is larger than the sum of its proper divisors (1).

990311341 is an equidigital number, since it uses as much as digits as its factorization.

990311341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 990311341 is about 31469.2125894500. The cubic root of 990311341 is about 996.7599604817.

The spelling of 990311341 in words is "nine hundred ninety million, three hundred eleven thousand, three hundred forty-one".