1421213253 has 32 divisors (see below), whose sum is σ = 2004473856. Its totient is φ = 894535488.

The previous prime is 1421213231. The next prime is 1421213273. The reversal of 1421213253 is 3523121241.

It is not a de Polignac number, because 1421213253 - 2⁵ = 1421213221 is a prime.

It is a super-2 number, since 2×1421213253² = 4039694221005684018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421213273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 796200 + ... + 797982.

It is an arithmetic number, because the mean of its divisors is an integer number (62639808).

Almost surely, 2^1421213253 is an apocalyptic number.

It is an amenable number.

1421213253 is a deficient number, since it is larger than the sum of its proper divisors (583260603).

1421213253 is a wasteful number, since it uses less digits than its factorization.

1421213253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033.

The product of its digits is 1440, while the sum is 24.

The square root of 1421213253 is about 37698.9821215374. The cubic root of 1421213253 is about 1124.3108874061.

Adding to 1421213253 its reverse (3523121241), we get a palindrome (4944334494).

The spelling of 1421213253 in words is "one billion, four hundred twenty-one million, two hundred thirteen thousand, two hundred fifty-three".