1230312029873 has 2 divisors, whose sum is σ = 1230312029874. Its totient is φ = 1230312029872.

The previous prime is 1230312029831. The next prime is 1230312029899. The reversal of 1230312029873 is 3789202130321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042669716544 + 187642313329 = 1021112^2 + 433177^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230312029873 - 2²⁰ = 1230310981297 is a prime.

It is a super-2 number, since 2×1230312029873² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1230312029873.

It is not a weakly prime, because it can be changed into another prime (1230312029173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615156014936 + 615156014937.

It is an arithmetic number, because the mean of its divisors is an integer number (615156014937).

Almost surely, 2^{1230312029873} is an apocalyptic number.

It is an amenable number.

1230312029873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230312029873 is an equidigital number, since it uses as much as digits as its factorization.

1230312029873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 1230312029873 in words is "one trillion, two hundred thirty billion, three hundred twelve million, twenty-nine thousand, eight hundred seventy-three".