1232420402000 has 80 divisors (see below), whose sum is σ = 2980286072400. Its totient is φ = 492919603200.

The previous prime is 1232420401973. The next prime is 1232420402011. The reversal of 1232420402000 is 2040242321.

It can be written as a sum of positive squares in 8 ways, for example, as 632966630464 + 599453771536 = 795592^2 + 774244^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25754096 + ... + 25801904.

It is an arithmetic number, because the mean of its divisors is an integer number (37253575905).

Almost surely, 2^{1232420402000} is an apocalyptic number.

1232420402000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232420402000 is an abundant number, since it is smaller than the sum of its proper divisors (1747865670400).

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

1232420402000 is a wasteful number, since it uses less digits than its factorization.

1232420402000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60721 (or 60705 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1232420402000 its reverse (2040242321), we get a palindrome (1234460644321).

The spelling of 1232420402000 in words is "one trillion, two hundred thirty-two billion, four hundred twenty million, four hundred two thousand".