1401402014381 has 2 divisors, whose sum is σ = 1401402014382. Its totient is φ = 1401402014380.

The previous prime is 1401402014323. The next prime is 1401402014399. The reversal of 1401402014381 is 1834102041041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123831091881 + 277570922500 = 1060109^2 + 526850^2 .

It is an emirp because it is prime and its reverse (1834102041041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401402014381 - 2²² = 1401397820077 is a prime.

It is a super-2 number, since 2×1401402014381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401402044381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700701007190 + 700701007191.

It is an arithmetic number, because the mean of its divisors is an integer number (700701007191).

Almost surely, 2^{1401402014381} is an apocalyptic number.

It is an amenable number.

1401402014381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401402014381 is an equidigital number, since it uses as much as digits as its factorization.

1401402014381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 1401402014381 in words is "one trillion, four hundred one billion, four hundred two million, fourteen thousand, three hundred eighty-one".