11121431032 has 16 divisors (see below), whose sum is σ = 21116642400. Its totient is φ = 5490326400.

The previous prime is 11121430973. The next prime is 11121431039. The reversal of 11121431032 is 23013412111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121431039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8797969 + ... + 8799232.

It is an arithmetic number, because the mean of its divisors is an integer number (1319790150).

Almost surely, 2^11121431032 is an apocalyptic number.

It is an amenable number.

11121431032 is a deficient number, since it is larger than the sum of its proper divisors (9995211368).

11121431032 is a wasteful number, since it uses less digits than its factorization.

11121431032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17597286 (or 17597282 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11121431032 its reverse (23013412111), we get a palindrome (34134843143).

The spelling of 11121431032 in words is "eleven billion, one hundred twenty-one million, four hundred thirty-one thousand, thirty-two".