1011421507 has 2 divisors, whose sum is σ = 1011421508. Its totient is φ = 1011421506.

The previous prime is 1011421403. The next prime is 1011421519. The reversal of 1011421507 is 7051241101.

It is a strong prime.

It is an emirp because it is prime and its reverse (7051241101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011421507 - 2⁷ = 1011421379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011421577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505710753 + 505710754.

It is an arithmetic number, because the mean of its divisors is an integer number (505710754).

Almost surely, 2^1011421507 is an apocalyptic number.

1011421507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011421507 is an equidigital number, since it uses as much as digits as its factorization.

1011421507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 1011421507 is about 31802.8537555987. The cubic root of 1011421507 is about 1003.7927657416.

Adding to 1011421507 its reverse (7051241101), we get a palindrome (8062662608).

The spelling of 1011421507 in words is "one billion, eleven million, four hundred twenty-one thousand, five hundred seven".