20120320112819 has 2 divisors, whose sum is σ = 20120320112820. Its totient is φ = 20120320112818.

The previous prime is 20120320112801. The next prime is 20120320112831. The reversal of 20120320112819 is 91821102302102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20120320112819 - 2³⁶ = 20051600636083 is a prime.

It is a super-2 number, since 2×20120320112819² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20120320112869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060160056409 + 10060160056410.

It is an arithmetic number, because the mean of its divisors is an integer number (10060160056410).

Almost surely, 2^{20120320112819} is an apocalyptic number.

20120320112819 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120320112819 is an equidigital number, since it uses as much as digits as its factorization.

20120320112819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 20120320112819 in words is "twenty trillion, one hundred twenty billion, three hundred twenty million, one hundred twelve thousand, eight hundred nineteen".