20121965803283 has 2 divisors, whose sum is σ = 20121965803284. Its totient is φ = 20121965803282.

The previous prime is 20121965803271. The next prime is 20121965803309. The reversal of 20121965803283 is 38230856912102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20121965803283 - 2¹⁰ = 20121965802259 is a prime.

It is not a weakly prime, because it can be changed into another prime (20121965803783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060982901641 + 10060982901642.

It is an arithmetic number, because the mean of its divisors is an integer number (10060982901642).

Almost surely, 2^{20121965803283} is an apocalyptic number.

20121965803283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121965803283 is an equidigital number, since it uses as much as digits as its factorization.

20121965803283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 20121965803283 in words is "twenty trillion, one hundred twenty-one billion, nine hundred sixty-five million, eight hundred three thousand, two hundred eighty-three".