1263312434 has 16 divisors (see below), whose sum is σ = 1971511296. Its totient is φ = 606463200.

The previous prime is 1263312433. The next prime is 1263312473. The reversal of 1263312434 is 4342133621.

It is a junction number, because it is equal to n+sod(n) for n = 1263312397 and 1263312406.

It is not an unprimeable number, because it can be changed into a prime (1263312433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72347 + ... + 88094.

It is an arithmetic number, because the mean of its divisors is an integer number (123219456).

Almost surely, 2^1263312434 is an apocalyptic number.

1263312434 is a deficient number, since it is larger than the sum of its proper divisors (708198862).

1263312434 is a wasteful number, since it uses less digits than its factorization.

1263312434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160601.

The product of its digits is 10368, while the sum is 29.

The square root of 1263312434 is about 35543.1067015814. The cubic root of 1263312434 is about 1081.0279518902.

The spelling of 1263312434 in words is "one billion, two hundred sixty-three million, three hundred twelve thousand, four hundred thirty-four".