1400443121001 has 16 divisors (see below), whose sum is σ = 1869572734848. Its totient is φ = 932471654400.

The previous prime is 1400443120961. The next prime is 1400443121009. The reversal of 1400443121001 is 1001213440041.

It is not a de Polignac number, because 1400443121001 - 2²⁶ = 1400376012137 is a prime.

It is a super-2 number, since 2×1400443121001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400443121009) 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, 10939996 + ... + 11067266.

It is an arithmetic number, because the mean of its divisors is an integer number (116848295928).

Almost surely, 2^{1400443121001} is an apocalyptic number.

It is an amenable number.

1400443121001 is a deficient number, since it is larger than the sum of its proper divisors (469129613847).

1400443121001 is a wasteful number, since it uses less digits than its factorization.

1400443121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131792.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1400443121001 its reverse (1001213440041), we get a palindrome (2401656561042).

The spelling of 1400443121001 in words is "one trillion, four hundred billion, four hundred forty-three million, one hundred twenty-one thousand, one".