1204142531 has 2 divisors, whose sum is σ = 1204142532. Its totient is φ = 1204142530.

The previous prime is 1204142509. The next prime is 1204142539. The reversal of 1204142531 is 1352414021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1204142531 - 2¹⁸ = 1203880387 is a prime.

It is a super-2 number, since 2×1204142531² = 2899918469926171922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1204142497 and 1204142506.

It is not a weakly prime, because it can be changed into another prime (1204142539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602071265 + 602071266.

It is an arithmetic number, because the mean of its divisors is an integer number (602071266).

Almost surely, 2^1204142531 is an apocalyptic number.

1204142531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204142531 is an equidigital number, since it uses as much as digits as its factorization.

1204142531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1204142531 is about 34700.7569225802. The cubic root of 1204142531 is about 1063.8799692527.

Adding to 1204142531 its reverse (1352414021), we get a palindrome (2556556552).

The spelling of 1204142531 in words is "one billion, two hundred four million, one hundred forty-two thousand, five hundred thirty-one".