2231121330031 has 8 divisors (see below), whose sum is σ = 2434238106624. Its totient is φ = 2028052480920.

The previous prime is 2231121330029. The next prime is 2231121330047. The reversal of 2231121330031 is 1300331211322.

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

It is a cyclic number.

It is not a de Polignac number, because 2231121330031 - 2¹ = 2231121330029 is a prime.

It is a super-3 number, since 3×2231121330031³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231121329984 and 2231121330011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231121330731) 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, 11884495 + ... + 12070768.

It is an arithmetic number, because the mean of its divisors is an integer number (304279763328).

Almost surely, 2^{2231121330031} is an apocalyptic number.

2231121330031 is a deficient number, since it is larger than the sum of its proper divisors (203116776593).

2231121330031 is a wasteful number, since it uses less digits than its factorization.

2231121330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23963741.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2231121330031 its reverse (1300331211322), we get a palindrome (3531452541353).

The spelling of 2231121330031 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, three hundred thirty thousand, thirty-one".