1203547121142 has 16 divisors (see below), whose sum is σ = 2484742444032. Its totient is φ = 388241006760.

The previous prime is 1203547121141. The next prime is 1203547121159. The reversal of 1203547121142 is 2411217453021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203547121141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3235341538 + ... + 3235341909.

It is an arithmetic number, because the mean of its divisors is an integer number (155296402752).

Almost surely, 2^{1203547121142} is an apocalyptic number.

1203547121142 is an abundant number, since it is smaller than the sum of its proper divisors (1281195322890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1203547121142 is a wasteful number, since it uses less digits than its factorization.

1203547121142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470683483.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 1203547121142 in words is "one trillion, two hundred three billion, five hundred forty-seven million, one hundred twenty-one thousand, one hundred forty-two".