1011213131403 has 32 divisors (see below), whose sum is σ = 1373571590400. Its totient is φ = 661540271616.

The previous prime is 1011213131387. The next prime is 1011213131407. The reversal of 1011213131403 is 3041313121101.

It is not a de Polignac number, because 1011213131403 - 2⁴ = 1011213131387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011213131403.

It is not an unprimeable number, because it can be changed into a prime (1011213131407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440230951 + ... + 440233247.

It is an arithmetic number, because the mean of its divisors is an integer number (42924112200).

Almost surely, 2^{1011213131403} is an apocalyptic number.

1011213131403 is a deficient number, since it is larger than the sum of its proper divisors (362358458997).

1011213131403 is a wasteful number, since it uses less digits than its factorization.

1011213131403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1011213131403 its reverse (3041313121101), we get a palindrome (4052526252504).

The spelling of 1011213131403 in words is "one trillion, eleven billion, two hundred thirteen million, one hundred thirty-one thousand, four hundred three".