103212881 has 2 divisors, whose sum is σ = 103212882. Its totient is φ = 103212880.

The previous prime is 103212877. The next prime is 103212887. The reversal of 103212881 is 188212301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61481281 + 41731600 = 7841^2 + 6460^2 .

It is a cyclic number.

It is not a de Polignac number, because 103212881 - 2² = 103212877 is a prime.

It is a super-2 number, since 2×103212881² = 21305797608640322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103212881.

It is not a weakly prime, because it can be changed into another prime (103212887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51606440 + 51606441.

It is an arithmetic number, because the mean of its divisors is an integer number (51606441).

Almost surely, 2^103212881 is an apocalyptic number.

It is an amenable number.

103212881 is a deficient number, since it is larger than the sum of its proper divisors (1).

103212881 is an equidigital number, since it uses as much as digits as its factorization.

103212881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 103212881 is about 10159.3740456782. The cubic root of 103212881 is about 469.0775342618.

The spelling of 103212881 in words is "one hundred three million, two hundred twelve thousand, eight hundred eighty-one".