11042243031 has 16 divisors (see below), whose sum is σ = 14892885504. Its totient is φ = 7276847424.

The previous prime is 11042242993. The next prime is 11042243063. The reversal of 11042243031 is 13034224011.

It is not a de Polignac number, because 11042243031 - 2¹¹ = 11042240983 is a prime.

It is a super-2 number, since 2×11042243031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11042242989 and 11042243007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11042243071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111475 + ... + 185771.

It is an arithmetic number, because the mean of its divisors is an integer number (930805344).

Almost surely, 2^11042243031 is an apocalyptic number.

11042243031 is a deficient number, since it is larger than the sum of its proper divisors (3850642473).

11042243031 is a wasteful number, since it uses less digits than its factorization.

11042243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74870.

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

Adding to 11042243031 its reverse (13034224011), we get a palindrome (24076467042).

The spelling of 11042243031 in words is "eleven billion, forty-two million, two hundred forty-three thousand, thirty-one".