1011311012 has 24 divisors (see below), whose sum is σ = 1850083200. Its totient is φ = 482795456.

The previous prime is 1011310981. The next prime is 1011311057. The reversal of 1011311012 is 2101131101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011310984 and 1011311002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42689 + ... + 62007.

It is an arithmetic number, because the mean of its divisors is an integer number (77086800).

Almost surely, 2^1011311012 is an apocalyptic number.

It is an amenable number.

1011311012 is a deficient number, since it is larger than the sum of its proper divisors (838772188).

1011311012 is a wasteful number, since it uses less digits than its factorization.

1011311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19915 (or 19913 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1011311012 is about 31801.1165212796. The cubic root of 1011311012 is about 1003.7562105500.

Adding to 1011311012 its reverse (2101131101), we get a palindrome (3112442113).

It can be divided in two parts, 101131101 and 2, that multiplied together give a palindrome (202262202).

The spelling of 1011311012 in words is "one billion, eleven million, three hundred eleven thousand, twelve".