1011321030 has 32 divisors (see below), whose sum is σ = 2452199904. Its totient is φ = 266904576.

The previous prime is 1011321023. The next prime is 1011321061. The reversal of 1011321030 is 301231101.

It is a junction number, because it is equal to n+sod(n) for n = 1011320997 and 1011321015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170857 + ... + 176676.

It is an arithmetic number, because the mean of its divisors is an integer number (76631247).

Almost surely, 2^1011321030 is an apocalyptic number.

1011321030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011321030 is an abundant number, since it is smaller than the sum of its proper divisors (1440878874).

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

1011321030 is a wasteful number, since it uses less digits than its factorization.

1011321030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347640.

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

The square root of 1011321030 is about 31801.2740310825. The cubic root of 1011321030 is about 1003.7595249266.

Adding to 1011321030 its reverse (301231101), we get a palindrome (1312552131).

The spelling of 1011321030 in words is "one billion, eleven million, three hundred twenty-one thousand, thirty".