11233020031 has 4 divisors (see below), whose sum is σ = 11300283792. Its totient is φ = 11165756272.

The previous prime is 11233020013. The next prime is 11233020037. The reversal of 11233020031 is 13002033211.

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

It is not a de Polignac number, because 11233020031 - 2⁵ = 11233019999 is a prime.

It is a super-2 number, since 2×11233020031² (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 = 11233019987 and 11233020014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11233020037) 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, 33631630 + ... + 33631963.

It is an arithmetic number, because the mean of its divisors is an integer number (2825070948).

Almost surely, 2^11233020031 is an apocalyptic number.

11233020031 is a deficient number, since it is larger than the sum of its proper divisors (67263761).

11233020031 is an equidigital number, since it uses as much as digits as its factorization.

11233020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67263760.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 11233020031 its reverse (13002033211), we get a palindrome (24235053242).

The spelling of 11233020031 in words is "eleven billion, two hundred thirty-three million, twenty thousand, thirty-one".