2112021023431 has 8 divisors (see below), whose sum is σ = 2304317322000. Its totient is φ = 1919773789440.

The previous prime is 2112021023429. The next prime is 2112021023467. The reversal of 2112021023431 is 1343201202112.

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 2112021023431 - 2¹ = 2112021023429 is a prime.

It is a super-2 number, since 2×2112021023431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112021623431) 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, 12176106 + ... + 12348343.

It is an arithmetic number, because the mean of its divisors is an integer number (288039665250).

Almost surely, 2^{2112021023431} is an apocalyptic number.

2112021023431 is a deficient number, since it is larger than the sum of its proper divisors (192296298569).

2112021023431 is a wasteful number, since it uses less digits than its factorization.

2112021023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24532289.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2112021023431 its reverse (1343201202112), we get a palindrome (3455222225543).

The spelling of 2112021023431 in words is "two trillion, one hundred twelve billion, twenty-one million, twenty-three thousand, four hundred thirty-one".