1012771011 has 32 divisors (see below), whose sum is σ = 1575687168. Its totient is φ = 566616960.

The previous prime is 1012770991. The next prime is 1012771021. The reversal of 1012771011 is 1101772101.

It is not a de Polignac number, because 1012771011 - 2⁶ = 1012770947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1012771021) 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, 1046850 + ... + 1047816.

It is an arithmetic number, because the mean of its divisors is an integer number (49240224).

Almost surely, 2^1012771011 is an apocalyptic number.

1012771011 is a deficient number, since it is larger than the sum of its proper divisors (562916157).

1012771011 is an equidigital number, since it uses as much as digits as its factorization.

1012771011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971.

The product of its (nonzero) digits is 98, while the sum is 21.

The square root of 1012771011 is about 31824.0633954874. The cubic root of 1012771011 is about 1004.2390090782.

The spelling of 1012771011 in words is "one billion, twelve million, seven hundred seventy-one thousand, eleven".