1153401505323 has 16 divisors (see below), whose sum is σ = 1545229357056. Its totient is φ = 765262708640.

The previous prime is 1153401505261. The next prime is 1153401505327. The reversal of 1153401505323 is 3235051043511.

It is a cyclic number.

It is not a de Polignac number, because 1153401505323 - 2²² = 1153397311019 is a prime.

It is a super-3 number, since 3×1153401505323³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1153401505327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559065 + ... + 1618442.

It is an arithmetic number, because the mean of its divisors is an integer number (96576834816).

Almost surely, 2^{1153401505323} is an apocalyptic number.

1153401505323 is a deficient number, since it is larger than the sum of its proper divisors (391827851733).

1153401505323 is a wasteful number, since it uses less digits than its factorization.

1153401505323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178354.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 1153401505323 its reverse (3235051043511), we get a palindrome (4388452548834).

The spelling of 1153401505323 in words is "one trillion, one hundred fifty-three billion, four hundred one million, five hundred five thousand, three hundred twenty-three".