263131040022 has 16 divisors (see below), whose sum is σ = 531472596912. Its totient is φ = 86841927200.

The previous prime is 263131040021. The next prime is 263131040113. The reversal of 263131040022 is 220040131362.

It is a junction number, because it is equal to n+sod(n) for n = 263131039974 and 263131040001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263131040021) 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, 217104213 + ... + 217105424.

It is an arithmetic number, because the mean of its divisors is an integer number (33217037307).

Almost surely, 2^263131040022 is an apocalyptic number.

263131040022 is an abundant number, since it is smaller than the sum of its proper divisors (268341556890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263131040022 is a wasteful number, since it uses less digits than its factorization.

263131040022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434209743.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 263131040022 its reverse (220040131362), we get a palindrome (483171171384).

The spelling of 263131040022 in words is "two hundred sixty-three billion, one hundred thirty-one million, forty thousand, twenty-two".