1373140661099 has 2 divisors, whose sum is σ = 1373140661100. Its totient is φ = 1373140661098.

The previous prime is 1373140661059. The next prime is 1373140661107. The reversal of 1373140661099 is 9901660413731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1373140661099 - 2²⁴ = 1373123883883 is a prime.

It is a super-3 number, since 3×1373140661099³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1373140661029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686570330549 + 686570330550.

It is an arithmetic number, because the mean of its divisors is an integer number (686570330550).

Almost surely, 2^{1373140661099} is an apocalyptic number.

1373140661099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373140661099 is an equidigital number, since it uses as much as digits as its factorization.

1373140661099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 1373140661099 in words is "one trillion, three hundred seventy-three billion, one hundred forty million, six hundred sixty-one thousand, ninety-nine".