1101312030 has 128 divisors (see below), whose sum is σ = 3341334528. Its totient is φ = 226063872.

The previous prime is 1101312019. The next prime is 1101312049. The reversal of 1101312030 is 302131011.

It is a junction number, because it is equal to n+sod(n) for n = 1101311997 and 1101312015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95559 + ... + 106461.

It is an arithmetic number, because the mean of its divisors is an integer number (26104176).

Almost surely, 2^1101312030 is an apocalyptic number.

1101312030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101312030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670667264).

1101312030 is an abundant number, since it is smaller than the sum of its proper divisors (2240022498).

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

1101312030 is a wasteful number, since it uses less digits than its factorization.

1101312030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1101312030 is about 33186.0216054893. The cubic root of 1101312030 is about 1032.6903713214.

Adding to 1101312030 its reverse (302131011), we get a palindrome (1403443041).

The spelling of 1101312030 in words is "one billion, one hundred one million, three hundred twelve thousand, thirty".