81011202 has 8 divisors (see below), whose sum is σ = 162022416. Its totient is φ = 27003732.

The previous prime is 81011197. The next prime is 81011207. The reversal of 81011202 is 20211018.

It is an interprime number because it is at equal distance from previous prime (81011197) and next prime (81011207).

It is a sphenic number, since it is the product of 3 distinct primes.

81011202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (81011207) 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, 6750928 + ... + 6750939.

It is an arithmetic number, because the mean of its divisors is an integer number (20252802).

Almost surely, 2^81011202 is an apocalyptic number.

81011202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

81011202 is a wasteful number, since it uses less digits than its factorization.

81011202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13501872.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 81011202 is about 9000.6223118182. The cubic root of 81011202 is about 432.6948159502.

The spelling of 81011202 in words is "eighty-one million, eleven thousand, two hundred two".