1231130354 has 4 divisors (see below), whose sum is σ = 1846695534. Its totient is φ = 615565176.

The previous prime is 1231130353. The next prime is 1231130387. The reversal of 1231130354 is 4530311321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4530311321 = 4597 ⋅985493.

It can be written as a sum of positive squares in only one way, i.e., 1085373025 + 145757329 = 32945^2 + 12073^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1231130353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307782587 + ... + 307782590.

Almost surely, 2^1231130354 is an apocalyptic number.

1231130354 is a deficient number, since it is larger than the sum of its proper divisors (615565180).

1231130354 is an equidigital number, since it uses as much as digits as its factorization.

1231130354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615565179.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1231130354 is about 35087.4671927171. The cubic root of 1231130354 is about 1071.7693827306.

Adding to 1231130354 its reverse (4530311321), we get a palindrome (5761441675).

The spelling of 1231130354 in words is "one billion, two hundred thirty-one million, one hundred thirty thousand, three hundred fifty-four".