1011213412 has 24 divisors (see below), whose sum is σ = 1997069760. Its totient is φ = 443792160.

The previous prime is 1011213373. The next prime is 1011213419. The reversal of 1011213412 is 2143121101.

It is not an unprimeable number, because it can be changed into a prime (1011213419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394968 + ... + 397519.

It is an arithmetic number, because the mean of its divisors is an integer number (83211240).

Almost surely, 2^1011213412 is an apocalyptic number.

It is an amenable number.

1011213412 is a deficient number, since it is larger than the sum of its proper divisors (985856348).

1011213412 is a wasteful number, since it uses less digits than its factorization.

1011213412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792531 (or 792529 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1011213412 is about 31799.5819469376. The cubic root of 1011213412 is about 1003.7239192118.

Adding to 1011213412 its reverse (2143121101), we get a palindrome (3154334513).

The spelling of 1011213412 in words is "one billion, eleven million, two hundred thirteen thousand, four hundred twelve".