1200202231431 has 8 divisors (see below), whose sum is σ = 1828879590784. Its totient is φ = 685829846520.

The previous prime is 1200202231387. The next prime is 1200202231441. The reversal of 1200202231431 is 1341322020021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200202231431 - 2¹¹ = 1200202229383 is a prime.

It is a super-2 number, since 2×1200202231431² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 57152487211 = 1200202231431 / (1 + 2 + 0 + 0 + 2 + 0 + 2 + 2 + 3 + 1 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200202231398 and 1200202231407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200202231441) 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, 28576243585 + ... + 28576243626.

It is an arithmetic number, because the mean of its divisors is an integer number (228609948848).

Almost surely, 2^{1200202231431} is an apocalyptic number.

1200202231431 is a deficient number, since it is larger than the sum of its proper divisors (628677359353).

1200202231431 is an equidigital number, since it uses as much as digits as its factorization.

1200202231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57152487221.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1200202231431 its reverse (1341322020021), we get a palindrome (2541524251452).

The spelling of 1200202231431 in words is "one trillion, two hundred billion, two hundred two million, two hundred thirty-one thousand, four hundred thirty-one".