1202340131 has 4 divisors (see below), whose sum is σ = 1210990200. Its totient is φ = 1193690064.

The previous prime is 1202340127. The next prime is 1202340133. The reversal of 1202340131 is 1310432021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202340131 - 2² = 1202340127 is a prime.

It is a super-2 number, since 2×1202340131² = 2891243581226194322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202340133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4324826 + ... + 4325103.

It is an arithmetic number, because the mean of its divisors is an integer number (302747550).

Almost surely, 2^1202340131 is an apocalyptic number.

1202340131 is a deficient number, since it is larger than the sum of its proper divisors (8650069).

1202340131 is an equidigital number, since it uses as much as digits as its factorization.

1202340131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8650068.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1202340131 is about 34674.7765818325. The cubic root of 1202340131 is about 1063.3488873839.

Adding to 1202340131 its reverse (1310432021), we get a palindrome (2512772152).

The spelling of 1202340131 in words is "one billion, two hundred two million, three hundred forty thousand, one hundred thirty-one".