1020402307 has 2 divisors, whose sum is σ = 1020402308. Its totient is φ = 1020402306.

The previous prime is 1020402287. The next prime is 1020402319. The reversal of 1020402307 is 7032040201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020402307 - 2¹¹ = 1020400259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020402367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510201153 + 510201154.

It is an arithmetic number, because the mean of its divisors is an integer number (510201154).

Almost surely, 2^1020402307 is an apocalyptic number.

1020402307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020402307 is an equidigital number, since it uses as much as digits as its factorization.

1020402307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1020402307 is about 31943.7365848142. The cubic root of 1020402307 is about 1006.7550357468.

Adding to 1020402307 its reverse (7032040201), we get a palindrome (8052442508).

The spelling of 1020402307 in words is "one billion, twenty million, four hundred two thousand, three hundred seven".