1421361312 has 48 divisors (see below), whose sum is σ = 4264085952. Its totient is φ = 406103040.

The previous prime is 1421361289. The next prime is 1421361317. The reversal of 1421361312 is 2131631241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1421361312² = 4040535958500722688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1421361317) 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, 1056889 + ... + 1058232.

It is an arithmetic number, because the mean of its divisors is an integer number (88835124).

Almost surely, 2^1421361312 is an apocalyptic number.

1421361312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421361312 is an abundant number, since it is smaller than the sum of its proper divisors (2842724640).

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

1421361312 is a wasteful number, since it uses less digits than its factorization.

1421361312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115141 (or 2115133 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 1421361312 is about 37700.9457706302. The cubic root of 1421361312 is about 1124.3499288296.

Adding to 1421361312 its reverse (2131631241), we get a palindrome (3552992553).

The spelling of 1421361312 in words is "one billion, four hundred twenty-one million, three hundred sixty-one thousand, three hundred twelve".