1200421402130 has 16 divisors (see below), whose sum is σ = 2163279844440. Its totient is φ = 479608267392.

The previous prime is 1200421402127. The next prime is 1200421402133. The reversal of 1200421402130 is 312041240021.

It is an interprime number because it is at equal distance from previous prime (1200421402127) and next prime (1200421402133).

It can be written as a sum of positive squares in 4 ways, for example, as 1159737301921 + 40684100209 = 1076911^2 + 201703^2 .

It is not an unprimeable number, because it can be changed into a prime (1200421402133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70027685 + ... + 70044824.

Almost surely, 2^{1200421402130} is an apocalyptic number.

1200421402130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200421402130 is a deficient number, since it is larger than the sum of its proper divisors (962858442310).

1200421402130 is a wasteful number, since it uses less digits than its factorization.

1200421402130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140073373.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1200421402130 its reverse (312041240021), we get a palindrome (1512462642151).

The spelling of 1200421402130 in words is "one trillion, two hundred billion, four hundred twenty-one million, four hundred two thousand, one hundred thirty".