1121311012 has 12 divisors (see below), whose sum is σ = 1963624320. Its totient is φ = 560275496.

The previous prime is 1121311003. The next prime is 1121311021. The reversal of 1121311012 is 2101131211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1121311003) and next prime (1121311021).

It is a junction number, because it is equal to n+sod(n) for n = 1121310983 and 1121311001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88312 + ... + 100207.

It is an arithmetic number, because the mean of its divisors is an integer number (163635360).

Almost surely, 2^1121311012 is an apocalyptic number.

It is an amenable number.

1121311012 is a deficient number, since it is larger than the sum of its proper divisors (842313308).

1121311012 is a wasteful number, since it uses less digits than its factorization.

1121311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190010 (or 190008 counting only the distinct ones).

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

The square root of 1121311012 is about 33485.9823209653. The cubic root of 1121311012 is about 1038.9038660648.

Adding to 1121311012 its reverse (2101131211), we get a palindrome (3222442223).

The spelling of 1121311012 in words is "one billion, one hundred twenty-one million, three hundred eleven thousand, twelve".