1400311317321 has 160 divisors (see below), whose sum is σ = 2502783360000. Its totient is φ = 763365472128.

The previous prime is 1400311317281. The next prime is 1400311317359. The reversal of 1400311317321 is 1237131130041.

1400311317321 is a `hidden beast` number, since 1 + 4 + 0 + 0 + 311 + 317 + 32 + 1 = 666.

It is not a de Polignac number, because 1400311317321 - 2²¹ = 1400309220169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1400311319321) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 518824630 + ... + 518827328.

It is an arithmetic number, because the mean of its divisors is an integer number (15642396000).

Almost surely, 2^{1400311317321} is an apocalyptic number.

It is an amenable number.

1400311317321 is a deficient number, since it is larger than the sum of its proper divisors (1102472042679).

1400311317321 is a wasteful number, since it uses less digits than its factorization.

1400311317321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

Adding to 1400311317321 its reverse (1237131130041), we get a palindrome (2637442447362).

The spelling of 1400311317321 in words is "one trillion, four hundred billion, three hundred eleven million, three hundred seventeen thousand, three hundred twenty-one".