1101321100425 has 72 divisors (see below), whose sum is σ = 2281066044096. Its totient is φ = 464733279360.

The previous prime is 1101321100421. The next prime is 1101321100471. The reversal of 1101321100425 is 5240011231011.

It is not a de Polignac number, because 1101321100425 - 2² = 1101321100421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1101321100421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11478349 + ... + 11573898.

Almost surely, 2^{1101321100425} is an apocalyptic number.

1101321100425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101321100425 is an abundant number, since it is smaller than the sum of its proper divisors (1179744943671).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101321100425 is a wasteful number, since it uses less digits than its factorization.

1101321100425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23052287 (or 23052275 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 1101321100425 its reverse (5240011231011), we get a palindrome (6341332331436).

The spelling of 1101321100425 in words is "one trillion, one hundred one billion, three hundred twenty-one million, one hundred thousand, four hundred twenty-five".