1311202020002 has 64 divisors (see below), whose sum is σ = 2353044038400. Its totient is φ = 547563945600.

The previous prime is 1311202019999. The next prime is 1311202020059. The reversal of 1311202020002 is 2000202021131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4331102 + ... + 4623942.

It is an arithmetic number, because the mean of its divisors is an integer number (36766313100).

Almost surely, 2^{1311202020002} is an apocalyptic number.

1311202020002 is a deficient number, since it is larger than the sum of its proper divisors (1041842018398).

1311202020002 is a wasteful number, since it uses less digits than its factorization.

1311202020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293032 (or 293018 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1311202020002 its reverse (2000202021131), we get a palindrome (3311404041133).

The spelling of 1311202020002 in words is "one trillion, three hundred eleven billion, two hundred two million, twenty thousand, two".