1011123112 has 8 divisors (see below), whose sum is σ = 1895855850. Its totient is φ = 505561552.

The previous prime is 1011123103. The next prime is 1011123137. The reversal of 1011123112 is 2113211101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 934280356 + 76842756 = 30566^2 + 8766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1011123092 and 1011123101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63195187 + ... + 63195202.

Almost surely, 2^1011123112 is an apocalyptic number.

It is an amenable number.

1011123112 is a deficient number, since it is larger than the sum of its proper divisors (884732738).

1011123112 is a wasteful number, since it uses less digits than its factorization.

1011123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126390395 (or 126390391 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1011123112 is about 31798.1620852527. The cubic root of 1011123112 is about 1003.6940412563.

Adding to 1011123112 its reverse (2113211101), we get a palindrome (3124334213).

The spelling of 1011123112 in words is "one billion, eleven million, one hundred twenty-three thousand, one hundred twelve".