3100031132220 has 384 divisors, whose sum is σ = 10793376921600. Its totient is φ = 732142540800.

The previous prime is 3100031132197. The next prime is 3100031132249. The reversal of 3100031132220 is 222311300013.

3100031132220 is a `hidden beast` number, since 3 + 10 + 0 + 0 + 311 + 322 + 20 = 666.

It is a super-2 number, since 2×3100031132220² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3100031132193 and 3100031132202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 177044826 + ... + 177062334.

It is an arithmetic number, because the mean of its divisors is an integer number (28107752400).

Almost surely, 2^{3100031132220} is an apocalyptic number.

3100031132220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3100031132220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5396688460800).

3100031132220 is an abundant number, since it is smaller than the sum of its proper divisors (7693345789380).

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

3100031132220 is a wasteful number, since it uses less digits than its factorization.

3100031132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18306 (or 18298 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 3100031132220 its reverse (222311300013), we get a palindrome (3322342432233).

The spelling of 3100031132220 in words is "three trillion, one hundred billion, thirty-one million, one hundred thirty-two thousand, two hundred twenty".