1331801106 has 32 divisors (see below), whose sum is σ = 2752068096. Its totient is φ = 429216000.

The previous prime is 1331801099. The next prime is 1331801153. The reversal of 1331801106 is 6011081331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250516 + ... + 255776.

It is an arithmetic number, because the mean of its divisors is an integer number (86002128).

Almost surely, 2^1331801106 is an apocalyptic number.

1331801106 is an abundant number, since it is smaller than the sum of its proper divisors (1420266990).

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

1331801106 is a wasteful number, since it uses less digits than its factorization.

1331801106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6658.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1331801106 is about 36493.8502490488. The cubic root of 1331801106 is about 1100.2206460963.

Adding to 1331801106 its reverse (6011081331), we get a palindrome (7342882437).

The spelling of 1331801106 in words is "one billion, three hundred thirty-one million, eight hundred one thousand, one hundred six".