11132020031 has 4 divisors (see below), whose sum is σ = 12144021864. Its totient is φ = 10120018200.

The previous prime is 11132020007. The next prime is 11132020043. The reversal of 11132020031 is 13002023111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11132020031 - 2²² = 11127825727 is a prime.

It is a super-2 number, since 2×11132020031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11132019988 and 11132020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132020061) 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, 506000900 + ... + 506000921.

It is an arithmetic number, because the mean of its divisors is an integer number (3036005466).

Almost surely, 2^11132020031 is an apocalyptic number.

11132020031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11132020031 is a deficient number, since it is larger than the sum of its proper divisors (1012001833).

11132020031 is a wasteful number, since it uses less digits than its factorization.

11132020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012001832.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11132020031 its reverse (13002023111), we get a palindrome (24134043142).

The spelling of 11132020031 in words is "eleven billion, one hundred thirty-two million, twenty thousand, thirty-one".