11031145420 has 24 divisors (see below), whose sum is σ = 23184184464. Its totient is φ = 4408881216.

The previous prime is 11031145403. The next prime is 11031145429. The reversal of 11031145420 is 2454113011.

It is a junction number, because it is equal to n+sod(n) for n = 11031145391 and 11031145400.

It is not an unprimeable number, because it can be changed into a prime (11031145429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198202 + ... + 247681.

It is an arithmetic number, because the mean of its divisors is an integer number (966007686).

Almost surely, 2^11031145420 is an apocalyptic number.

11031145420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11031145420 is an abundant number, since it is smaller than the sum of its proper divisors (12153039044).

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

11031145420 is a wasteful number, since it uses less digits than its factorization.

11031145420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447129 (or 447127 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 11031145420 its reverse (2454113011), we get a palindrome (13485258431).

The spelling of 11031145420 in words is "eleven billion, thirty-one million, one hundred forty-five thousand, four hundred twenty".