121300312019 has 2 divisors, whose sum is σ = 121300312020. Its totient is φ = 121300312018.

The previous prime is 121300311971. The next prime is 121300312033. The reversal of 121300312019 is 910213003121.

It is a strong prime.

It is an emirp because it is prime and its reverse (910213003121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121300312019 is a prime.

It is a super-2 number, since 2×121300312019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121300311985 and 121300312003.

It is not a weakly prime, because it can be changed into another prime (121300312039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60650156009 + 60650156010.

It is an arithmetic number, because the mean of its divisors is an integer number (60650156010).

Almost surely, 2^121300312019 is an apocalyptic number.

121300312019 is a deficient number, since it is larger than the sum of its proper divisors (1).

121300312019 is an equidigital number, since it uses as much as digits as its factorization.

121300312019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 121300312019 in words is "one hundred twenty-one billion, three hundred million, three hundred twelve thousand, nineteen".