11033012431 has 8 divisors (see below), whose sum is σ = 12866487200. Its totient is φ = 9456867504.

The previous prime is 11033012429. The next prime is 11033012453. The reversal of 11033012431 is 13421033011.

It is not a de Polignac number, because 11033012431 - 2¹ = 11033012429 is a prime.

It is a super-2 number, since 2×11033012431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11033012399 and 11033012408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033012401) 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, 16082766 + ... + 16083451.

It is an arithmetic number, because the mean of its divisors is an integer number (1608310900).

Almost surely, 2^11033012431 is an apocalyptic number.

11033012431 is a deficient number, since it is larger than the sum of its proper divisors (1833474769).

11033012431 is an frugal number, since it uses more digits than its factorization.

11033012431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32166238 (or 32166224 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11033012431 its reverse (13421033011), we get a palindrome (24454045442).

The spelling of 11033012431 in words is "eleven billion, thirty-three million, twelve thousand, four hundred thirty-one".