1912345065331 has 16 divisors (see below), whose sum is σ = 1922852151360. Its totient is φ = 1901869724160.

The previous prime is 1912345065311. The next prime is 1912345065343. The reversal of 1912345065331 is 1335605432191.

It is a cyclic number.

It is not a de Polignac number, because 1912345065331 - 2¹⁷ = 1912344934259 is a prime.

It is a super-2 number, since 2×1912345065331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1912345065311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325170511 + ... + 325176391.

It is an arithmetic number, because the mean of its divisors is an integer number (120178259460).

Almost surely, 2^{1912345065331} is an apocalyptic number.

1912345065331 is a deficient number, since it is larger than the sum of its proper divisors (10507086029).

1912345065331 is a wasteful number, since it uses less digits than its factorization.

1912345065331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 1912345065331 in words is "one trillion, nine hundred twelve billion, three hundred forty-five million, sixty-five thousand, three hundred thirty-one".