1231134119 has 2 divisors, whose sum is σ = 1231134120. Its totient is φ = 1231134118.

The previous prime is 1231134097. The next prime is 1231134143. The reversal of 1231134119 is 9114311321.

It is a weak prime.

It is an emirp because it is prime and its reverse (9114311321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231134119 is a prime.

It is a super-2 number, since 2×1231134119² = 3031382437931812322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231134319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615567059 + 615567060.

It is an arithmetic number, because the mean of its divisors is an integer number (615567060).

Almost surely, 2^1231134119 is an apocalyptic number.

1231134119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231134119 is an equidigital number, since it uses as much as digits as its factorization.

1231134119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 26.

The square root of 1231134119 is about 35087.5208443116. The cubic root of 1231134119 is about 1071.7704752787.

The spelling of 1231134119 in words is "one billion, two hundred thirty-one million, one hundred thirty-four thousand, one hundred nineteen".