1125120263100 has 72 divisors (see below), whose sum is σ = 3286953371520. Its totient is φ = 297119129280.

The previous prime is 1125120263093. The next prime is 1125120263119. The reversal of 1125120263100 is 13620215211.

It is a happy number.

It is a super-2 number, since 2×1125120263100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18174930 + ... + 18236729.

It is an arithmetic number, because the mean of its divisors is an integer number (45652130160).

Almost surely, 2^{1125120263100} is an apocalyptic number.

1125120263100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125120263100 is an abundant number, since it is smaller than the sum of its proper divisors (2161833108420).

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

1125120263100 is a wasteful number, since it uses less digits than its factorization.

1125120263100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36411779 (or 36411772 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 1125120263100 its reverse (13620215211), we get a palindrome (1138740478311).

The spelling of 1125120263100 in words is "one trillion, one hundred twenty-five billion, one hundred twenty million, two hundred sixty-three thousand, one hundred".