1402121313 has 16 divisors (see below), whose sum is σ = 2090453760. Its totient is φ = 928790928.

The previous prime is 1402121311. The next prime is 1402121333. The reversal of 1402121313 is 3131212041.

1402121313 is a `hidden beast` number, since 140 + 212 + 1 + 313 = 666.

It is not a de Polignac number, because 1402121313 - 2¹ = 1402121311 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1402121311) 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, 161145 + ... + 169622.

It is an arithmetic number, because the mean of its divisors is an integer number (130653360).

Almost surely, 2^1402121313 is an apocalyptic number.

It is an amenable number.

1402121313 is a deficient number, since it is larger than the sum of its proper divisors (688332447).

1402121313 is a wasteful number, since it uses less digits than its factorization.

1402121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330933 (or 330927 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1402121313 is about 37444.9103751097. The cubic root of 1402121313 is about 1119.2536782282.

Adding to 1402121313 its reverse (3131212041), we get a palindrome (4533333354).

The spelling of 1402121313 in words is "one billion, four hundred two million, one hundred twenty-one thousand, three hundred thirteen".