1011232420 has 96 divisors (see below), whose sum is σ = 2473390080. Its totient is φ = 343203840.

The previous prime is 1011232381. The next prime is 1011232429. The reversal of 1011232420 is 242321101.

It is a junction number, because it is equal to n+sod(n) for n = 1011232394 and 1011232403.

It is not an unprimeable number, because it can be changed into a prime (1011232429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473916 + ... + 476044.

It is an arithmetic number, because the mean of its divisors is an integer number (25764480).

Almost surely, 2^1011232420 is an apocalyptic number.

1011232420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236695040).

1011232420 is an abundant number, since it is smaller than the sum of its proper divisors (1462157660).

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

1011232420 is a wasteful number, since it uses less digits than its factorization.

1011232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2291 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1011232420 is about 31799.8808173867. The cubic root of 1011232420 is about 1003.7302082452.

Adding to 1011232420 its reverse (242321101), we get a palindrome (1253553521).

The spelling of 1011232420 in words is "one billion, eleven million, two hundred thirty-two thousand, four hundred twenty".