11098531 has 2 divisors, whose sum is σ = 11098532. Its totient is φ = 11098530.

The previous prime is 11098519. The next prime is 11098541. The reversal of 11098531 is 13589011.

11098531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13589011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11098531 - 2⁵ = 11098499 is a prime.

It is a super-2 number, since 2×11098531² = 246354780715922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11098531.

It is not a weakly prime, because it can be changed into another prime (11098541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5549265 + 5549266.

It is an arithmetic number, because the mean of its divisors is an integer number (5549266).

Almost surely, 2^11098531 is an apocalyptic number.

11098531 is a deficient number, since it is larger than the sum of its proper divisors (1).

11098531 is an equidigital number, since it uses as much as digits as its factorization.

11098531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 11098531 is about 3331.4457822393. The cubic root of 11098531 is about 223.0600694819.

The spelling of 11098531 in words is "eleven million, ninety-eight thousand, five hundred thirty-one".