1263133765231 has 8 divisors (see below), whose sum is σ = 1360592338784. Its totient is φ = 1165717254240.

The previous prime is 1263133765183. The next prime is 1263133765241. The reversal of 1263133765231 is 1325673313621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1263133765231 is a prime.

It is a super-2 number, since 2×1263133765231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263133765241) 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, 10453251 + ... + 10573396.

It is an arithmetic number, because the mean of its divisors is an integer number (170074042348).

Almost surely, 2^{1263133765231} is an apocalyptic number.

1263133765231 is a deficient number, since it is larger than the sum of its proper divisors (97458573553).

1263133765231 is a wasteful number, since it uses less digits than its factorization.

1263133765231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031281.

The product of its digits is 408240, while the sum is 43.

The spelling of 1263133765231 in words is "one trillion, two hundred sixty-three billion, one hundred thirty-three million, seven hundred sixty-five thousand, two hundred thirty-one".