1011212403 has 16 divisors (see below), whose sum is σ = 1366686720. Its totient is φ = 664956864.

The previous prime is 1011212401. The next prime is 1011212417. The reversal of 1011212403 is 3042121101.

1011212403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011212403 - 2¹ = 1011212401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011212401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421375 + ... + 423767.

It is an arithmetic number, because the mean of its divisors is an integer number (85417920).

Almost surely, 2^1011212403 is an apocalyptic number.

1011212403 is a deficient number, since it is larger than the sum of its proper divisors (355474317).

1011212403 is a wasteful number, since it uses less digits than its factorization.

1011212403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4258.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1011212403 is about 31799.5660819452. The cubic root of 1011212403 is about 1003.7235853694.

Adding to 1011212403 its reverse (3042121101), we get a palindrome (4053333504).

The spelling of 1011212403 in words is "one billion, eleven million, two hundred twelve thousand, four hundred three".