1055231011 has 2 divisors, whose sum is σ = 1055231012. Its totient is φ = 1055231010.

The previous prime is 1055230997. The next prime is 1055231029. The reversal of 1055231011 is 1101325501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1055231011 - 2¹⁷ = 1055099939 is a prime.

It is a super-2 number, since 2×1055231011² = 2227024973152164242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055231011.

It is not a weakly prime, because it can be changed into another prime (1055231311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527615505 + 527615506.

It is an arithmetic number, because the mean of its divisors is an integer number (527615506).

Almost surely, 2^1055231011 is an apocalyptic number.

1055231011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055231011 is an equidigital number, since it uses as much as digits as its factorization.

1055231011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1055231011 is about 32484.3194633965. The cubic root of 1055231011 is about 1018.0814284431.

Adding to 1055231011 its reverse (1101325501), we get a palindrome (2156556512).

The spelling of 1055231011 in words is "one billion, fifty-five million, two hundred thirty-one thousand, eleven".