1202142331 has 8 divisors (see below), whose sum is σ = 1362752720. Its totient is φ = 1051265952.

The previous prime is 1202142323. The next prime is 1202142367. The reversal of 1202142331 is 1332412021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1202142331 - 2³ = 1202142323 is a prime.

It is a super-2 number, since 2×1202142331² = 2890292367964227122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202142299 and 1202142308.

It is not an unprimeable number, because it can be changed into a prime (1202142371) 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 7 ways as a sum of consecutive naturals, for example, 2433240 + ... + 2433733.

It is an arithmetic number, because the mean of its divisors is an integer number (170344090).

Almost surely, 2^1202142331 is an apocalyptic number.

1202142331 is a deficient number, since it is larger than the sum of its proper divisors (160610389).

1202142331 is a wasteful number, since it uses less digits than its factorization.

1202142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867005.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1202142331 is about 34671.9242471484. The cubic root of 1202142331 is about 1063.2905727856.

Adding to 1202142331 its reverse (1332412021), we get a palindrome (2534554352).

The spelling of 1202142331 in words is "one billion, two hundred two million, one hundred forty-two thousand, three hundred thirty-one".