1231114019 has 4 divisors (see below), whose sum is σ = 1231593960. Its totient is φ = 1230634080.

The previous prime is 1231113979. The next prime is 1231114111. The reversal of 1231114019 is 9104111321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1231114019 - 2²⁴ = 1214336803 is a prime.

It is a super-3 number, since 3×1231114019³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231113985 and 1231114003.

It is not an unprimeable number, because it can be changed into a prime (1231110019) 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, 236102 + ... + 241259.

It is an arithmetic number, because the mean of its divisors is an integer number (307898490).

Almost surely, 2^1231114019 is an apocalyptic number.

1231114019 is a deficient number, since it is larger than the sum of its proper divisors (479941).

1231114019 is an equidigital number, since it uses as much as digits as its factorization.

1231114019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479940.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1231114019 is about 35087.2344165225. The cubic root of 1231114019 is about 1071.7646425257.

The spelling of 1231114019 in words is "one billion, two hundred thirty-one million, one hundred fourteen thousand, nineteen".