11021310420 has 48 divisors (see below), whose sum is σ = 31365575808. Its totient is φ = 2890834560.

The previous prime is 11021310403. The next prime is 11021310427. The reversal of 11021310420 is 2401312011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11021310420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021310427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1501984 + ... + 1509303.

It is an arithmetic number, because the mean of its divisors is an integer number (653449496).

Almost surely, 2^11021310420 is an apocalyptic number.

11021310420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021310420 is an abundant number, since it is smaller than the sum of its proper divisors (20344265388).

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

11021310420 is a wasteful number, since it uses less digits than its factorization.

11021310420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011360 (or 3011358 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11021310420 its reverse (2401312011), we get a palindrome (13422622431).

The spelling of 11021310420 in words is "eleven billion, twenty-one million, three hundred ten thousand, four hundred twenty".