1200103021099 has 2 divisors, whose sum is σ = 1200103021100. Its totient is φ = 1200103021098.

The previous prime is 1200103020973. The next prime is 1200103021121. The reversal of 1200103021099 is 9901203010021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200103021099 - 2¹³ = 1200103012907 is a prime.

It is a super-2 number, since 2×1200103021099² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1200103001099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600051510549 + 600051510550.

It is an arithmetic number, because the mean of its divisors is an integer number (600051510550).

Almost surely, 2^{1200103021099} is an apocalyptic number.

1200103021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200103021099 is an equidigital number, since it uses as much as digits as its factorization.

1200103021099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 1200103021099 in words is "one trillion, two hundred billion, one hundred three million, twenty-one thousand, ninety-nine".