1314400021 has 16 divisors (see below), whose sum is σ = 1498186368. Its totient is φ = 1141465600.

The previous prime is 1314399997. The next prime is 1314400027. The reversal of 1314400021 is 1200044131.

It is not a de Polignac number, because 1314400021 - 2¹³ = 1314391829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1314399968 and 1314400004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314400027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219945 + ... + 225841.

It is an arithmetic number, because the mean of its divisors is an integer number (93636648).

Almost surely, 2^1314400021 is an apocalyptic number.

1314400021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1314400021 is a deficient number, since it is larger than the sum of its proper divisors (183786347).

1314400021 is a wasteful number, since it uses less digits than its factorization.

1314400021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6812.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1314400021 is about 36254.6551631649. The cubic root of 1314400021 is about 1095.4078590176.

Adding to 1314400021 its reverse (1200044131), we get a palindrome (2514444152).

The spelling of 1314400021 in words is "one billion, three hundred fourteen million, four hundred thousand, twenty-one".