1930212021193 has 16 divisors (see below), whose sum is σ = 2019681423360. Its totient is φ = 1841206273984.

The previous prime is 1930212021169. The next prime is 1930212021197. The reversal of 1930212021193 is 3911202120391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1930212021193 is a prime.

It is a super-2 number, since 2×1930212021193² (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 (1930212021197) 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 15 ways as a sum of consecutive naturals, for example, 93268155 + ... + 93288847.

It is an arithmetic number, because the mean of its divisors is an integer number (126230088960).

Almost surely, 2^{1930212021193} is an apocalyptic number.

It is an amenable number.

1930212021193 is a deficient number, since it is larger than the sum of its proper divisors (89469402167).

1930212021193 is a wasteful number, since it uses less digits than its factorization.

1930212021193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31688.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 1930212021193 in words is "one trillion, nine hundred thirty billion, two hundred twelve million, twenty-one thousand, one hundred ninety-three".