220316113631 has 4 divisors (see below), whose sum is σ = 221589617352. Its totient is φ = 219042609912.

The previous prime is 220316113573. The next prime is 220316113729. The reversal of 220316113631 is 136311613022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220316113631 - 2¹⁴ = 220316097247 is a prime.

It is a super-2 number, since 2×220316113631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220316113594 and 220316113603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220316112631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636751601 + ... + 636751946.

It is an arithmetic number, because the mean of its divisors is an integer number (55397404338).

Almost surely, 2^220316113631 is an apocalyptic number.

220316113631 is a deficient number, since it is larger than the sum of its proper divisors (1273503721).

220316113631 is a wasteful number, since it uses less digits than its factorization.

220316113631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273503720.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 220316113631 its reverse (136311613022), we get a palindrome (356627726653).

The spelling of 220316113631 in words is "two hundred twenty billion, three hundred sixteen million, one hundred thirteen thousand, six hundred thirty-one".