1020111092 has 48 divisors (see below), whose sum is σ = 2396913792. Its totient is φ = 366871680.

The previous prime is 1020111091. The next prime is 1020111107. The reversal of 1020111092 is 2901110201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020111092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020111091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123383 + ... + 131390.

It is an arithmetic number, because the mean of its divisors is an integer number (49935704).

Almost surely, 2^1020111092 is an apocalyptic number.

It is an amenable number.

1020111092 is an abundant number, since it is smaller than the sum of its proper divisors (1376802700).

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

1020111092 is a wasteful number, since it uses less digits than its factorization.

1020111092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254808 (or 254806 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1020111092 is about 31939.1780107128. The cubic root of 1020111092 is about 1006.6592532433.

Adding to 1020111092 its reverse (2901110201), we get a palindrome (3921221293).

It can be divided in two parts, 10 and 20111092, that added together give a palindrome (20111102).

The spelling of 1020111092 in words is "one billion, twenty million, one hundred eleven thousand, ninety-two".