1011420252 has 36 divisors (see below), whose sum is σ = 2589015520. Its totient is φ = 332871552.

The previous prime is 1011420251. The next prime is 1011420257. The reversal of 1011420252 is 2520241101.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011420251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174973 + ... + 180660.

Almost surely, 2^1011420252 is an apocalyptic number.

1011420252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011420252 is an abundant number, since it is smaller than the sum of its proper divisors (1577595268).

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

1011420252 is a wasteful number, since it uses less digits than its factorization.

1011420252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355722 (or 355717 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1011420252 is about 31802.8340246589. The cubic root of 1011420252 is about 1003.7923505634.

Adding to 1011420252 its reverse (2520241101), we get a palindrome (3531661353).

The spelling of 1011420252 in words is "one billion, eleven million, four hundred twenty thousand, two hundred fifty-two".