11403331401 has 48 divisors (see below), whose sum is σ = 19422885888. Its totient is φ = 5884452000.

The previous prime is 11403331343. The next prime is 11403331477. The reversal of 11403331401 is 10413330411.

It is not a de Polignac number, because 11403331401 - 2⁷ = 11403331273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11403311401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 220816 + ... + 267518.

It is an arithmetic number, because the mean of its divisors is an integer number (404643456).

Almost surely, 2^11403331401 is an apocalyptic number.

11403331401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11403331401 is a deficient number, since it is larger than the sum of its proper divisors (8019554487).

11403331401 is a wasteful number, since it uses less digits than its factorization.

11403331401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46882 (or 46875 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11403331401 its reverse (10413330411), we get a palindrome (21816661812).

The spelling of 11403331401 in words is "eleven billion, four hundred three million, three hundred thirty-one thousand, four hundred one".