1101313425551 has 4 divisors (see below), whose sum is σ = 1139289750600. Its totient is φ = 1063337100504.

The previous prime is 1101313425503. The next prime is 1101313425587. The reversal of 1101313425551 is 1555243131011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101313425551 - 2¹⁴ = 1101313409167 is a prime.

It is a super-2 number, since 2×1101313425551² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101313415551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18988162481 + ... + 18988162538.

It is an arithmetic number, because the mean of its divisors is an integer number (284822437650).

Almost surely, 2^{1101313425551} is an apocalyptic number.

1101313425551 is a deficient number, since it is larger than the sum of its proper divisors (37976325049).

1101313425551 is an equidigital number, since it uses as much as digits as its factorization.

1101313425551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37976325048.

The product of its (nonzero) digits is 9000, while the sum is 32.

Adding to 1101313425551 its reverse (1555243131011), we get a palindrome (2656556556562).

The spelling of 1101313425551 in words is "one trillion, one hundred one billion, three hundred thirteen million, four hundred twenty-five thousand, five hundred fifty-one".