1013121181830 has 16 divisors (see below), whose sum is σ = 2431490836464. Its totient is φ = 270165648480.

The previous prime is 1013121181819. The next prime is 1013121181883. The reversal of 1013121181830 is 381811213101.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 33770706061 = 1013121181830 / (1 + 0 + 1 + 3 + 1 + 2 + 1 + 1 + 8 + 1 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16885353001 + ... + 16885353060.

It is an arithmetic number, because the mean of its divisors is an integer number (151968177279).

Almost surely, 2^{1013121181830} is an apocalyptic number.

1013121181830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1013121181830 is an abundant number, since it is smaller than the sum of its proper divisors (1418369654634).

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

1013121181830 is a wasteful number, since it uses less digits than its factorization.

1013121181830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33770706071.

The product of its (nonzero) digits is 1152, while the sum is 30.

Adding to 1013121181830 its reverse (381811213101), we get a palindrome (1394932394931).

The spelling of 1013121181830 in words is "one trillion, thirteen billion, one hundred twenty-one million, one hundred eighty-one thousand, eight hundred thirty".