1121031230100 has 72 divisors (see below), whose sum is σ = 3312528067968. Its totient is φ = 292581196800.

The previous prime is 1121031230087. The next prime is 1121031230101. The reversal of 1121031230100 is 10321301211.

It is a happy number.

It is a super-2 number, since 2×1121031230100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1121031230100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121031230101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39738781 + ... + 39766980.

Almost surely, 2^{1121031230100} is an apocalyptic number.

1121031230100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121031230100 is an abundant number, since it is smaller than the sum of its proper divisors (2191496837868).

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

1121031230100 is a wasteful number, since it uses less digits than its factorization.

1121031230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79505825 (or 79505818 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1121031230100 its reverse (10321301211), we get a palindrome (1131352531311).

The spelling of 1121031230100 in words is "one trillion, one hundred twenty-one billion, thirty-one million, two hundred thirty thousand, one hundred".