1011121505030 has 128 divisors (see below), whose sum is σ = 2381247590400. Its totient is φ = 299978496000.

The previous prime is 1011121504901. The next prime is 1011121505039. The reversal of 1011121505030 is 305051211101.

It is a happy number.

1011121505030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1011121504993 and 1011121505011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011121505039) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3752771 + ... + 4013169.

It is an arithmetic number, because the mean of its divisors is an integer number (18603496800).

Almost surely, 2^{1011121505030} is an apocalyptic number.

1011121505030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011121505030 is an abundant number, since it is smaller than the sum of its proper divisors (1370126085370).

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

1011121505030 is a wasteful number, since it uses less digits than its factorization.

1011121505030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260694.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 1011121505030 its reverse (305051211101), we get a palindrome (1316172716131).

It can be divided in two parts, 1011121 and 505030, that added together give a palindrome (1516151).

The spelling of 1011121505030 in words is "one trillion, eleven billion, one hundred twenty-one million, five hundred five thousand, thirty".