1421513331 has 8 divisors (see below), whose sum is σ = 2166115584. Its totient is φ = 812293320.

The previous prime is 1421513311. The next prime is 1421513333. The reversal of 1421513331 is 1333151241.

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

It is not a de Polignac number, because 1421513331 - 2⁶ = 1421513267 is a prime.

It is a super-2 number, since 2×1421513331² = 4041400300421431122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1421513333) 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, 33845535 + ... + 33845576.

It is an arithmetic number, because the mean of its divisors is an integer number (270764448).

Almost surely, 2^1421513331 is an apocalyptic number.

1421513331 is a deficient number, since it is larger than the sum of its proper divisors (744602253).

1421513331 is an equidigital number, since it uses as much as digits as its factorization.

1421513331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67691121.

The product of its digits is 1080, while the sum is 24.

The square root of 1421513331 is about 37702.9618332565. The cubic root of 1421513331 is about 1124.3900116378.

Adding to 1421513331 its reverse (1333151241), we get a palindrome (2754664572).

The spelling of 1421513331 in words is "one billion, four hundred twenty-one million, five hundred thirteen thousand, three hundred thirty-one".