1200030131 has 4 divisors (see below), whose sum is σ = 1202964600. Its totient is φ = 1197095664.

The previous prime is 1200030127. The next prime is 1200030133. The reversal of 1200030131 is 1310300021.

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 1200030131 - 2² = 1200030127 is a prime.

It is a super-2 number, since 2×1200030131² = 2880144630615754322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200030133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466621 + ... + 1467438.

It is an arithmetic number, because the mean of its divisors is an integer number (300741150).

Almost surely, 2^1200030131 is an apocalyptic number.

1200030131 is a deficient number, since it is larger than the sum of its proper divisors (2934469).

1200030131 is an equidigital number, since it uses as much as digits as its factorization.

1200030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934468.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1200030131 is about 34641.4510521716. The cubic root of 1200030131 is about 1062.6674632652.

Adding to 1200030131 its reverse (1310300021), we get a palindrome (2510330152).

The spelling of 1200030131 in words is "one billion, two hundred million, thirty thousand, one hundred thirty-one".