1101121312 has 24 divisors (see below), whose sum is σ = 2169927900. Its totient is φ = 550028544.

The previous prime is 1101121279. The next prime is 1101121337. The reversal of 1101121312 is 2131211011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1086097936 + 15023376 = 32956^2 + 3876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1101121292 and 1101121301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18114 + ... + 50302.

Almost surely, 2^1101121312 is an apocalyptic number.

It is an amenable number.

1101121312 is a deficient number, since it is larger than the sum of its proper divisors (1068806588).

1101121312 is a wasteful number, since it uses less digits than its factorization.

1101121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33268 (or 33260 counting only the distinct ones).

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

The square root of 1101121312 is about 33183.1480122064. The cubic root of 1101121312 is about 1032.6307563630.

Adding to 1101121312 its reverse (2131211011), we get a palindrome (3232332323).

It can be divided in two parts, 11011 and 21312, that multiplied together give a palindrome (234666432).

The spelling of 1101121312 in words is "one billion, one hundred one million, one hundred twenty-one thousand, three hundred twelve".