3311409181 has 4 divisors (see below), whose sum is σ = 3418228864. Its totient is φ = 3204589500.

The previous prime is 3311409173. The next prime is 3311409187. The reversal of 3311409181 is 1819041133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3311409181 - 2³ = 3311409173 is a prime.

It is a super-2 number, since 2×3311409181² = 21930861528022181522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 106819651 = 3311409181 / (3 + 3 + 1 + 1 + 4 + 0 + 9 + 1 + 8 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311409187) 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, 53409795 + ... + 53409856.

It is an arithmetic number, because the mean of its divisors is an integer number (854557216).

Almost surely, 2^3311409181 is an apocalyptic number.

3311409181 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3311409181 is a deficient number, since it is larger than the sum of its proper divisors (106819683).

3311409181 is a wasteful number, since it uses less digits than its factorization.

3311409181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106819682.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 3311409181 is about 57544.8449559124. The cubic root of 3311409181 is about 1490.5193422560.

The spelling of 3311409181 in words is "three billion, three hundred eleven million, four hundred nine thousand, one hundred eighty-one".