1201403431972 has 12 divisors (see below), whose sum is σ = 2226129888780. Its totient is φ = 565366320896.

The previous prime is 1201403431951. The next prime is 1201403431973. The reversal of 1201403431972 is 2791343041021.

It can be written as a sum of positive squares in 2 ways, for example, as 611358227236 + 590045204736 = 781894^2 + 768144^2 .

It is not an unprimeable number, because it can be changed into a prime (1201403431973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8833848697 + ... + 8833848832.

It is an arithmetic number, because the mean of its divisors is an integer number (185510824065).

Almost surely, 2^{1201403431972} is an apocalyptic number.

It is an amenable number.

1201403431972 is a deficient number, since it is larger than the sum of its proper divisors (1024726456808).

1201403431972 is a wasteful number, since it uses less digits than its factorization.

1201403431972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17667697550 (or 17667697548 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

Adding to 1201403431972 its reverse (2791343041021), we get a palindrome (3992746472993).

The spelling of 1201403431972 in words is "one trillion, two hundred one billion, four hundred three million, four hundred thirty-one thousand, nine hundred seventy-two".