1345143543121 has 8 divisors (see below), whose sum is σ = 1537571960064. Its totient is φ = 1152781389600.

The previous prime is 1345143543109. The next prime is 1345143543127. The reversal of 1345143543121 is 1213453415431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345143543121 - 2⁵ = 1345143543089 is a prime.

It is a super-2 number, since 2×1345143543121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345143543127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16522345 + ... + 16603558.

It is an arithmetic number, because the mean of its divisors is an integer number (192196495008).

Almost surely, 2^{1345143543121} is an apocalyptic number.

It is an amenable number.

1345143543121 is a deficient number, since it is larger than the sum of its proper divisors (192428416943).

1345143543121 is an equidigital number, since it uses as much as digits as its factorization.

1345143543121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33131711.

The product of its digits is 86400, while the sum is 37.

Adding to 1345143543121 its reverse (1213453415431), we get a palindrome (2558596958552).

The spelling of 1345143543121 in words is "one trillion, three hundred forty-five billion, one hundred forty-three million, five hundred forty-three thousand, one hundred twenty-one".