1206103881 has 32 divisors (see below), whose sum is σ = 1714608000. Its totient is φ = 752880128.

The previous prime is 1206103819. The next prime is 1206103903. The reversal of 1206103881 is 1883016021.

It is a cyclic number.

It is not a de Polignac number, because 1206103881 - 2⁷ = 1206103753 is a prime.

It is a super-2 number, since 2×1206103881² = 2909373143526524322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1206103181) 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, 408910 + ... + 411848.

It is an arithmetic number, because the mean of its divisors is an integer number (53581500).

Almost surely, 2^1206103881 is an apocalyptic number.

It is an amenable number.

1206103881 is a deficient number, since it is larger than the sum of its proper divisors (508504119).

1206103881 is a wasteful number, since it uses less digits than its factorization.

1206103881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1206103881 is about 34729.0063347629. The cubic root of 1206103881 is about 1064.4572843730.

The spelling of 1206103881 in words is "one billion, two hundred six million, one hundred three thousand, eight hundred eighty-one".