1302420523 has 2 divisors, whose sum is σ = 1302420524. Its totient is φ = 1302420522.

The previous prime is 1302420491. The next prime is 1302420533. The reversal of 1302420523 is 3250242031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1302420523 - 2⁵ = 1302420491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302420494 and 1302420503.

It is not a weakly prime, because it can be changed into another prime (1302420533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651210261 + 651210262.

It is an arithmetic number, because the mean of its divisors is an integer number (651210262).

Almost surely, 2^1302420523 is an apocalyptic number.

1302420523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302420523 is an equidigital number, since it uses as much as digits as its factorization.

1302420523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1302420523 is about 36089.0637589838. The cubic root of 1302420523 is about 1092.0698327228.

Adding to 1302420523 its reverse (3250242031), we get a palindrome (4552662554).

The spelling of 1302420523 in words is "one billion, three hundred two million, four hundred twenty thousand, five hundred twenty-three".