20213311403 has 8 divisors (see below), whose sum is σ = 20365421760. Its totient is φ = 20061267520.

The previous prime is 20213311399. The next prime is 20213311463. The reversal of 20213311403 is 30411331202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20213311403 - 2² = 20213311399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213311463) 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, 713438 + ... + 741228.

It is an arithmetic number, because the mean of its divisors is an integer number (2545677720).

Almost surely, 2^20213311403 is an apocalyptic number.

20213311403 is a deficient number, since it is larger than the sum of its proper divisors (152110357).

20213311403 is a wasteful number, since it uses less digits than its factorization.

20213311403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33237.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20213311403 its reverse (30411331202), we get a palindrome (50624642605).

The spelling of 20213311403 in words is "twenty billion, two hundred thirteen million, three hundred eleven thousand, four hundred three".