1155420543002 has 16 divisors (see below), whose sum is σ = 1890708003072. Its totient is φ = 525185644320.

The previous prime is 1155420542987. The next prime is 1155420543019. The reversal of 1155420543002 is 2003450245511.

It is a self number, because there is not a number n which added to its sum of digits gives 1155420543002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481278 + ... + 2909910.

It is an arithmetic number, because the mean of its divisors is an integer number (118169250192).

Almost surely, 2^{1155420543002} is an apocalyptic number.

1155420543002 is a deficient number, since it is larger than the sum of its proper divisors (735287460070).

1155420543002 is a wasteful number, since it uses less digits than its factorization.

1155420543002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551173.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 1155420543002 its reverse (2003450245511), we get a palindrome (3158870788513).

The spelling of 1155420543002 in words is "one trillion, one hundred fifty-five billion, four hundred twenty million, five hundred forty-three thousand, two".