220231101131 has 8 divisors (see below), whose sum is σ = 222513904704. Its totient is φ = 217948550400.

The previous prime is 220231101091. The next prime is 220231101133. The reversal of 220231101131 is 131101132022.

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-220231101131 is a prime.

It is a super-2 number, since 2×220231101131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220231101133) 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, 2052686 + ... + 2157308.

It is an arithmetic number, because the mean of its divisors is an integer number (27814238088).

Almost surely, 2^220231101131 is an apocalyptic number.

220231101131 is a deficient number, since it is larger than the sum of its proper divisors (2282803573).

220231101131 is a wasteful number, since it uses less digits than its factorization.

220231101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126421.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 220231101131 its reverse (131101132022), we get a palindrome (351332233153).

The spelling of 220231101131 in words is "two hundred twenty billion, two hundred thirty-one million, one hundred one thousand, one hundred thirty-one".