263140111323 has 16 divisors (see below), whose sum is σ = 390954228000. Its totient is φ = 174924079200.

The previous prime is 263140111319. The next prime is 263140111363. The reversal of 263140111323 is 323111041362.

It is a happy number.

263140111323 is a `hidden beast` number, since 2 + 631 + 4 + 0 + 1 + 1 + 1 + 3 + 23 = 666.

It is not a de Polignac number, because 263140111323 - 2² = 263140111319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (263140111363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13953228 + ... + 13972073.

It is an arithmetic number, because the mean of its divisors is an integer number (24434639250).

Almost surely, 2^263140111323 is an apocalyptic number.

263140111323 is a deficient number, since it is larger than the sum of its proper divisors (127814116677).

263140111323 is a wasteful number, since it uses less digits than its factorization.

263140111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27925659 (or 27925653 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 263140111323 its reverse (323111041362), we get a palindrome (586251152685).

The spelling of 263140111323 in words is "two hundred sixty-three billion, one hundred forty million, one hundred eleven thousand, three hundred twenty-three".