1231334045 has 16 divisors (see below), whose sum is σ = 1556858880. Its totient is φ = 932328000.

The previous prime is 1231334029. The next prime is 1231334077. The reversal of 1231334045 is 5404331321.

It is not a de Polignac number, because 1231334045 - 2⁴ = 1231334029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103715 + ... + 114975.

It is an arithmetic number, because the mean of its divisors is an integer number (97303680).

Almost surely, 2^1231334045 is an apocalyptic number.

It is an amenable number.

1231334045 is a deficient number, since it is larger than the sum of its proper divisors (325524835).

1231334045 is a wasteful number, since it uses less digits than its factorization.

1231334045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12436.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1231334045 is about 35090.3696902726. The cubic root of 1231334045 is about 1071.8284876926.

Adding to 1231334045 its reverse (5404331321), we get a palindrome (6635665366).

The spelling of 1231334045 in words is "one billion, two hundred thirty-one million, three hundred thirty-four thousand, forty-five".