11898031 has 4 divisors (see below), whose sum is σ = 11907000. Its totient is φ = 11889064.

The previous prime is 11898013. The next prime is 11898037. The reversal of 11898031 is 13089811.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11898031 - 2⁹ = 11897519 is a prime.

It is a super-2 number, since 2×11898031² = 283126283353922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11897984 and 11898002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11898037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2056 + ... + 5293.

It is an arithmetic number, because the mean of its divisors is an integer number (2976750).

Almost surely, 2^11898031 is an apocalyptic number.

11898031 is a deficient number, since it is larger than the sum of its proper divisors (8969).

11898031 is an equidigital number, since it uses as much as digits as its factorization.

11898031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8968.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 11898031 is about 3449.3522580334. The cubic root of 11898031 is about 228.2925287460.

The spelling of 11898031 in words is "eleven million, eight hundred ninety-eight thousand, thirty-one".