263264332121331 has 8 divisors (see below), whose sum is σ = 351026634368400. Its totient is φ = 175505792310912.

The previous prime is 263264332121321. The next prime is 263264332121429. The reversal of 263264332121331 is 133121233462362.

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

It is not a de Polignac number, because 263264332121331 - 2¹⁷ = 263264331990259 is a prime.

It is a super-2 number, since 2×263264332121331² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (263264332121321) 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, 940445890 + ... + 940725783.

It is an arithmetic number, because the mean of its divisors is an integer number (43878329296050).

Almost surely, 2^{263264332121331} is an apocalyptic number.

263264332121331 is a deficient number, since it is larger than the sum of its proper divisors (87762302247069).

263264332121331 is a wasteful number, since it uses less digits than its factorization.

263264332121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881218325.

The product of its digits is 559872, while the sum is 42.

Adding to 263264332121331 its reverse (133121233462362), we get a palindrome (396385565583693).

The spelling of 263264332121331 in words is "two hundred sixty-three trillion, two hundred sixty-four billion, three hundred thirty-two million, one hundred twenty-one thousand, three hundred thirty-one".