400030320110381 has 2 divisors, whose sum is σ = 400030320110382. Its totient is φ = 400030320110380.

The previous prime is 400030320110231. The next prime is 400030320110401. The reversal of 400030320110381 is 183011023030004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391156230628900 + 8874089481481 = 19777670^2 + 2978941^2 .

It is a cyclic number.

It is not a de Polignac number, because 400030320110381 - 2²⁶ = 400030253001517 is a prime.

It is a super-2 number, since 2×400030320110381² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400030320110381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400030320115381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200015160055190 + 200015160055191.

It is an arithmetic number, because the mean of its divisors is an integer number (200015160055191).

Almost surely, 2^{400030320110381} is an apocalyptic number.

It is an amenable number.

400030320110381 is a deficient number, since it is larger than the sum of its proper divisors (1).

400030320110381 is an equidigital number, since it uses as much as digits as its factorization.

400030320110381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 400030320110381 its reverse (183011023030004), we get a palindrome (583041343140385).

The spelling of 400030320110381 in words is "four hundred trillion, thirty billion, three hundred twenty million, one hundred ten thousand, three hundred eighty-one".