11020123031 has 8 divisors (see below), whose sum is σ = 11321040864. Its totient is φ = 10719367200.

The previous prime is 11020123021. The next prime is 11020123043. The reversal of 11020123031 is 13032102011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11020123031 is a prime.

It is a super-2 number, since 2×11020123031² (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 = 11020122997 and 11020123015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020123021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104381 + ... + 181481.

It is an arithmetic number, because the mean of its divisors is an integer number (1415130108).

Almost surely, 2^11020123031 is an apocalyptic number.

11020123031 is a deficient number, since it is larger than the sum of its proper divisors (300917833).

11020123031 is an equidigital number, since it uses as much as digits as its factorization.

11020123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81001.

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

Adding to 11020123031 its reverse (13032102011), we get a palindrome (24052225042).

The spelling of 11020123031 in words is "eleven billion, twenty million, one hundred twenty-three thousand, thirty-one".