1011423253 has 8 divisors (see below), whose sum is σ = 1052488800. Its totient is φ = 971155248.

The previous prime is 1011423247. The next prime is 1011423293. The reversal of 1011423253 is 3523241101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1011423253 - 2¹³ = 1011415061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011423293) 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, 196798 + ... + 201871.

It is an arithmetic number, because the mean of its divisors is an integer number (131561100).

Almost surely, 2^1011423253 is an apocalyptic number.

It is an amenable number.

1011423253 is a deficient number, since it is larger than the sum of its proper divisors (41065547).

1011423253 is an equidigital number, since it uses as much as digits as its factorization.

1011423253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398771.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1011423253 is about 31802.8812059537. The cubic root of 1011423253 is about 1003.7933433515.

Adding to 1011423253 its reverse (3523241101), we get a palindrome (4534664354).

The spelling of 1011423253 in words is "one billion, eleven million, four hundred twenty-three thousand, two hundred fifty-three".