11452421155 has 16 divisors (see below), whose sum is σ = 15820827840. Its totient is φ = 7795763712.

The previous prime is 11452421137. The next prime is 11452421173. The reversal of 11452421155 is 55112425411.

It is an interprime number because it is at equal distance from previous prime (11452421137) and next prime (11452421173).

It is a cyclic number.

It is not a de Polignac number, because 11452421155 - 2³³ = 2862486563 is a prime.

It is a super-2 number, since 2×11452421155² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189410 + ... + 1198999.

It is an arithmetic number, because the mean of its divisors is an integer number (988801740).

Almost surely, 2^11452421155 is an apocalyptic number.

11452421155 is a deficient number, since it is larger than the sum of its proper divisors (4368406685).

11452421155 is a wasteful number, since it uses less digits than its factorization.

11452421155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388558.

The product of its digits is 8000, while the sum is 31.

Adding to 11452421155 its reverse (55112425411), we get a palindrome (66564846566).

The spelling of 11452421155 in words is "eleven billion, four hundred fifty-two million, four hundred twenty-one thousand, one hundred fifty-five".