1011231021330 has 64 divisors (see below), whose sum is σ = 2723315299200. Its totient is φ = 266991681600.

The previous prime is 1011231021313. The next prime is 1011231021377. The reversal of 1011231021330 is 331201321101.

1011231021330 is a `hidden beast` number, since 1 + 0 + 1 + 1 + 2 + 310 + 21 + 330 = 666.

It is a super-2 number, since 2×1011231021330² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18513820 + ... + 18568359.

It is an arithmetic number, because the mean of its divisors is an integer number (42551801550).

Almost surely, 2^{1011231021330} is an apocalyptic number.

1011231021330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011231021330 is an abundant number, since it is smaller than the sum of its proper divisors (1712084277870).

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

1011231021330 is a wasteful number, since it uses less digits than its factorization.

1011231021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37082296 (or 37082290 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1011231021330 its reverse (331201321101), we get a palindrome (1342432342431).

The spelling of 1011231021330 in words is "one trillion, eleven billion, two hundred thirty-one million, twenty-one thousand, three hundred thirty".