1002154203412 has 12 divisors (see below), whose sum is σ = 1754480764960. Its totient is φ = 500873984856.

The previous prime is 1002154203389. The next prime is 1002154203431. The reversal of 1002154203412 is 2143024512001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50768112 + ... + 50787847.

Almost surely, 2^{1002154203412} is an apocalyptic number.

It is an amenable number.

1002154203412 is a deficient number, since it is larger than the sum of its proper divisors (752326561548).

1002154203412 is a wasteful number, since it uses less digits than its factorization.

1002154203412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101558430 (or 101558428 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1002154203412 its reverse (2143024512001), we get a palindrome (3145178715413).

The spelling of 1002154203412 in words is "one trillion, two billion, one hundred fifty-four million, two hundred three thousand, four hundred twelve".