11123167553 has 2 divisors, whose sum is σ = 11123167554. Its totient is φ = 11123167552.

The previous prime is 11123167547. The next prime is 11123167577. The reversal of 11123167553 is 35576132111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10231727104 + 891440449 = 101152^2 + 29857^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123167553 - 2⁴ = 11123167537 is a prime.

It is a super-2 number, since 2×11123167553² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11123160553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561583776 + 5561583777.

It is an arithmetic number, because the mean of its divisors is an integer number (5561583777).

Almost surely, 2^11123167553 is an apocalyptic number.

It is an amenable number.

11123167553 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123167553 is an equidigital number, since it uses as much as digits as its factorization.

11123167553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

Adding to 11123167553 its reverse (35576132111), we get a palindrome (46699299664).

The spelling of 11123167553 in words is "eleven billion, one hundred twenty-three million, one hundred sixty-seven thousand, five hundred fifty-three".