1254231020 has 24 divisors (see below), whose sum is σ = 3010154784. Its totient is φ = 430022016.

The previous prime is 1254231007. The next prime is 1254231023. The reversal of 1254231020 is 201324521.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1254230983 and 1254231001.

It is not an unprimeable number, because it can be changed into a prime (1254231023) 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, 4479257 + ... + 4479536.

It is an arithmetic number, because the mean of its divisors is an integer number (125423116).

Almost surely, 2^1254231020 is an apocalyptic number.

1254231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1254231020 is an abundant number, since it is smaller than the sum of its proper divisors (1755923764).

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

1254231020 is a wasteful number, since it uses less digits than its factorization.

1254231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958809 (or 8958807 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1254231020 is about 35415.1241703315. The cubic root of 1254231020 is about 1078.4313704619.

Adding to 1254231020 its reverse (201324521), we get a palindrome (1455555541).

The spelling of 1254231020 in words is "one billion, two hundred fifty-four million, two hundred thirty-one thousand, twenty".