11403404031 has 8 divisors (see below), whose sum is σ = 15236282880. Its totient is φ = 7586397272.

The previous prime is 11403404027. The next prime is 11403404053. The reversal of 11403404031 is 13040430411.

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 11403404031 - 2² = 11403404027 is a prime.

It is a super-2 number, since 2×11403404031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11403403989 and 11403404007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403404081) 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, 3966345 + ... + 3969218.

It is an arithmetic number, because the mean of its divisors is an integer number (1904535360).

Almost surely, 2^11403404031 is an apocalyptic number.

11403404031 is a deficient number, since it is larger than the sum of its proper divisors (3832878849).

11403404031 is an equidigital number, since it uses as much as digits as its factorization.

11403404031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936045.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11403404031 its reverse (13040430411), we get a palindrome (24443834442).

The spelling of 11403404031 in words is "eleven billion, four hundred three million, four hundred four thousand, thirty-one".