1200400034133 has 16 divisors (see below), whose sum is σ = 1649048095296. Its totient is φ = 776234981760.

The previous prime is 1200400034131. The next prime is 1200400034143. The reversal of 1200400034133 is 3314300040021.

It is not a de Polignac number, because 1200400034133 - 2¹ = 1200400034131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200400034131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28184935 + ... + 28227492.

It is an arithmetic number, because the mean of its divisors is an integer number (103065505956).

Almost surely, 2^{1200400034133} is an apocalyptic number.

It is an amenable number.

1200400034133 is a deficient number, since it is larger than the sum of its proper divisors (448648061163).

1200400034133 is a wasteful number, since it uses less digits than its factorization.

1200400034133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56412644.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1200400034133 its reverse (3314300040021), we get a palindrome (4514700074154).

The spelling of 1200400034133 in words is "one trillion, two hundred billion, four hundred million, thirty-four thousand, one hundred thirty-three".