11204021031 has 8 divisors (see below), whose sum is σ = 17072793984. Its totient is φ = 6402297720.

The previous prime is 11204020943. The next prime is 11204021051. The reversal of 11204021031 is 13012040211.

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

It is a de Polignac number, because none of the positive numbers 2^k-11204021031 is a prime.

It is a super-2 number, since 2×11204021031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11204021031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11204021051) 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, 266762385 + ... + 266762426.

It is an arithmetic number, because the mean of its divisors is an integer number (2134099248).

Almost surely, 2^11204021031 is an apocalyptic number.

11204021031 is a deficient number, since it is larger than the sum of its proper divisors (5868772953).

11204021031 is an equidigital number, since it uses as much as digits as its factorization.

11204021031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533524821.

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

Adding to 11204021031 its reverse (13012040211), we get a palindrome (24216061242).

The spelling of 11204021031 in words is "eleven billion, two hundred four million, twenty-one thousand, thirty-one".