1402123311 has 16 divisors (see below), whose sum is σ = 2078183520. Its totient is φ = 934315200.

The previous prime is 1402123301. The next prime is 1402123313. The reversal of 1402123311 is 1133212041.

1402123311 is a `hidden beast` number, since 140 + 212 + 3 + 311 = 666.

1402123311 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1402123311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402123313) 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, 53761 + ... + 75461.

It is an arithmetic number, because the mean of its divisors is an integer number (129886470).

Almost surely, 2^1402123311 is an apocalyptic number.

1402123311 is a deficient number, since it is larger than the sum of its proper divisors (676060209).

1402123311 is a wasteful number, since it uses less digits than its factorization.

1402123311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24103 (or 24097 counting only the distinct ones).

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

The square root of 1402123311 is about 37444.9370542935. The cubic root of 1402123311 is about 1119.2542098674.

Adding to 1402123311 its reverse (1133212041), we get a palindrome (2535335352).

The spelling of 1402123311 in words is "one billion, four hundred two million, one hundred twenty-three thousand, three hundred eleven".