11203021401 has 32 divisors (see below), whose sum is σ = 18311795712. Its totient is φ = 5994922560.

The previous prime is 11203021381. The next prime is 11203021457. The reversal of 11203021401 is 10412030211.

It is not a de Polignac number, because 11203021401 - 2⁶ = 11203021337 is a prime.

It is a super-2 number, since 2×11203021401² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11203022401) 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, 557835 + ... + 577568.

It is an arithmetic number, because the mean of its divisors is an integer number (572243616).

Almost surely, 2^11203021401 is an apocalyptic number.

11203021401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11203021401 is a deficient number, since it is larger than the sum of its proper divisors (7108774311).

11203021401 is a wasteful number, since it uses less digits than its factorization.

11203021401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135453.

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

Adding to 11203021401 its reverse (10412030211), we get a palindrome (21615051612).

The spelling of 11203021401 in words is "eleven billion, two hundred three million, twenty-one thousand, four hundred one".