1212401303142 has 16 divisors (see below), whose sum is σ = 2425582573680. Its totient is φ = 404003773152.

The previous prime is 1212401303107. The next prime is 1212401303177. The reversal of 1212401303142 is 2413031042121.

It is an interprime number because it is at equal distance from previous prime (1212401303107) and next prime (1212401303177).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32478433 + ... + 32515740.

It is an arithmetic number, because the mean of its divisors is an integer number (151598910855).

Almost surely, 2^{1212401303142} is an apocalyptic number.

1212401303142 is an abundant number, since it is smaller than the sum of its proper divisors (1213181270538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212401303142 is a wasteful number, since it uses less digits than its factorization.

1212401303142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64997287.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1212401303142 its reverse (2413031042121), we get a palindrome (3625432345263).

The spelling of 1212401303142 in words is "one trillion, two hundred twelve billion, four hundred one million, three hundred three thousand, one hundred forty-two".