101812011 has 32 divisors (see below), whose sum is σ = 163952640. Its totient is φ = 54961536.

The previous prime is 101812001. The next prime is 101812019. The reversal of 101812011 is 110218101.

It is not a de Polignac number, because 101812011 - 2⁶ = 101811947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101812019) 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, 26845 + ... + 30401.

It is an arithmetic number, because the mean of its divisors is an integer number (5123520).

Almost surely, 2^101812011 is an apocalyptic number.

101812011 is a deficient number, since it is larger than the sum of its proper divisors (62140629).

101812011 is a wasteful number, since it uses less digits than its factorization.

101812011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 16, while the sum is 15.

The square root of 101812011 is about 10090.1938038870. The cubic root of 101812011 is about 466.9456550040.

The spelling of 101812011 in words is "one hundred one million, eight hundred twelve thousand, eleven".