11121201232031 has 8 divisors (see below), whose sum is σ = 12132306392400. Its totient is φ = 10110110549440.

The previous prime is 11121201232003. The next prime is 11121201232067. The reversal of 11121201232031 is 13023210212111.

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

It is not a de Polignac number, because 11121201232031 - 2⁶ = 11121201231967 is a prime.

It is a super-2 number, since 2×11121201232031² (a number of 27 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 = 11121201231994 and 11121201232012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121201232831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981046 + ... + 5115363.

It is an arithmetic number, because the mean of its divisors is an integer number (1516538299050).

Almost surely, 2^{11121201232031} is an apocalyptic number.

11121201232031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121201232031 is a deficient number, since it is larger than the sum of its proper divisors (1011105160369).

11121201232031 is a wasteful number, since it uses less digits than its factorization.

11121201232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238889.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11121201232031 its reverse (13023210212111), we get a palindrome (24144411444142).

The spelling of 11121201232031 in words is "eleven trillion, one hundred twenty-one billion, two hundred one million, two hundred thirty-two thousand, thirty-one".