1012010111 has 4 divisors (see below), whose sum is σ = 1156582992. Its totient is φ = 867437232.

The previous prime is 1012010101. The next prime is 1012010149. The reversal of 1012010111 is 1110102101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012010111 - 2⁶ = 1012010047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012010101) 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, 72286430 + ... + 72286443.

It is an arithmetic number, because the mean of its divisors is an integer number (289145748).

Almost surely, 2^1012010111 is an apocalyptic number.

1012010111 is a deficient number, since it is larger than the sum of its proper divisors (144572881).

1012010111 is an equidigital number, since it uses as much as digits as its factorization.

1012010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144572880.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1012010111 is about 31812.1063590577. The cubic root of 1012010111 is about 1003.9874494471.

Adding to 1012010111 its reverse (1110102101), we get a palindrome (2122112212).

The spelling of 1012010111 in words is "one billion, twelve million, ten thousand, one hundred eleven".