1202142231 has 12 divisors (see below), whose sum is σ = 1737083608. Its totient is φ = 801125424.

The previous prime is 1202142223. The next prime is 1202142317. The reversal of 1202142231 is 1322412021.

It is a happy number.

It is not a de Polignac number, because 1202142231 - 2³ = 1202142223 is a prime.

It is a super-2 number, since 2×1202142231² = 2890291887107314722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202142031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401 + ... + 49053.

Almost surely, 2^1202142231 is an apocalyptic number.

1202142231 is a deficient number, since it is larger than the sum of its proper divisors (534941377).

1202142231 is a wasteful number, since it uses less digits than its factorization.

1202142231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50462 (or 50459 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1202142231 is about 34671.9228050594. The cubic root of 1202142231 is about 1063.2905433024.

Adding to 1202142231 its reverse (1322412021), we get a palindrome (2524554252).

The spelling of 1202142231 in words is "one billion, two hundred two million, one hundred forty-two thousand, two hundred thirty-one".