130221111031 has 32 divisors (see below), whose sum is σ = 153201715200. Its totient is φ = 109517520000.

The previous prime is 130221110989. The next prime is 130221111043. The reversal of 130221111031 is 130111122031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 130221111031 - 2²¹ = 130219013879 is a prime.

It is a super-4 number, since 4×130221111031⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130221110996 and 130221111014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221111061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 933600 + ... + 1063978.

It is an arithmetic number, because the mean of its divisors is an integer number (4787553600).

Almost surely, 2^130221111031 is an apocalyptic number.

130221111031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130221111031 is a deficient number, since it is larger than the sum of its proper divisors (22980604169).

130221111031 is a wasteful number, since it uses less digits than its factorization.

130221111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130551.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 130221111031 its reverse (130111122031), we get a palindrome (260332233062).

The spelling of 130221111031 in words is "one hundred thirty billion, two hundred twenty-one million, one hundred eleven thousand, thirty-one".