1001534534121 has 32 divisors (see below), whose sum is σ = 1461590000640. Its totient is φ = 604986465600.

The previous prime is 1001534534087. The next prime is 1001534534123. The reversal of 1001534534121 is 1214354351001.

It is not a de Polignac number, because 1001534534121 - 2⁹ = 1001534533609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001534534123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46444740 + ... + 46466298.

It is an arithmetic number, because the mean of its divisors is an integer number (45674687520).

Almost surely, 2^{1001534534121} is an apocalyptic number.

1001534534121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001534534121 is a deficient number, since it is larger than the sum of its proper divisors (460055466519).

1001534534121 is a wasteful number, since it uses less digits than its factorization.

1001534534121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26157.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 1001534534121 its reverse (1214354351001), we get a palindrome (2215888885122).

The spelling of 1001534534121 in words is "one trillion, one billion, five hundred thirty-four million, five hundred thirty-four thousand, one hundred twenty-one".