1203545121275 has 48 divisors (see below), whose sum is σ = 1747793634048. Its totient is φ = 804925296000.

The previous prime is 1203545121269. The next prime is 1203545121281. The reversal of 1203545121275 is 5721215453021.

It is an interprime number because it is at equal distance from previous prime (1203545121269) and next prime (1203545121281).

It is not a de Polignac number, because 1203545121275 - 2⁶ = 1203545121211 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5084045 + ... + 5315505.

It is an arithmetic number, because the mean of its divisors is an integer number (36412367376).

Almost surely, 2^{1203545121275} is an apocalyptic number.

1203545121275 is a deficient number, since it is larger than the sum of its proper divisors (544248512773).

1203545121275 is a wasteful number, since it uses less digits than its factorization.

1203545121275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232212 (or 232207 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 1203545121275 in words is "one trillion, two hundred three billion, five hundred forty-five million, one hundred twenty-one thousand, two hundred seventy-five".