1202643131 has 2 divisors, whose sum is σ = 1202643132. Its totient is φ = 1202643130.

The previous prime is 1202643089. The next prime is 1202643187. The reversal of 1202643131 is 1313462021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202643131 - 2²² = 1198448827 is a prime.

It is a super-2 number, since 2×1202643131² = 2892701001082966322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202643097 and 1202643106.

It is not a weakly prime, because it can be changed into another prime (1202643031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601321565 + 601321566.

It is an arithmetic number, because the mean of its divisors is an integer number (601321566).

Almost surely, 2^1202643131 is an apocalyptic number.

1202643131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202643131 is an equidigital number, since it uses as much as digits as its factorization.

1202643131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1202643131 is about 34679.1454767847. The cubic root of 1202643131 is about 1063.4382042206.

The spelling of 1202643131 in words is "one billion, two hundred two million, six hundred forty-three thousand, one hundred thirty-one".