1202142336647 has 4 divisors (see below), whose sum is σ = 1373876956176. Its totient is φ = 1030407717120.

The previous prime is 1202142336623. The next prime is 1202142336671. The reversal of 1202142336647 is 7466332412021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1202142336623) and next prime (1202142336671).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202142336647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202142336607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85867309754 + ... + 85867309767.

It is an arithmetic number, because the mean of its divisors is an integer number (343469239044).

Almost surely, 2^{1202142336647} is an apocalyptic number.

1202142336647 is a deficient number, since it is larger than the sum of its proper divisors (171734619529).

1202142336647 is an equidigital number, since it uses as much as digits as its factorization.

1202142336647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171734619528.

The product of its (nonzero) digits is 290304, while the sum is 41.

Adding to 1202142336647 its reverse (7466332412021), we get a palindrome (8668474748668).

The spelling of 1202142336647 in words is "one trillion, two hundred two billion, one hundred forty-two million, three hundred thirty-six thousand, six hundred forty-seven".