143420253631 has 2 divisors, whose sum is σ = 143420253632. Its totient is φ = 143420253630.

The previous prime is 143420253589. The next prime is 143420253659. The reversal of 143420253631 is 136352024341.

It is a happy number.

143420253631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143420253631 - 2¹³ = 143420245439 is a prime.

It is a super-2 number, since 2×143420253631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143420253661) 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, 71710126815 + 71710126816.

It is an arithmetic number, because the mean of its divisors is an integer number (71710126816).

Almost surely, 2^143420253631 is an apocalyptic number.

143420253631 is a deficient number, since it is larger than the sum of its proper divisors (1).

143420253631 is an equidigital number, since it uses as much as digits as its factorization.

143420253631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 143420253631 its reverse (136352024341), we get a palindrome (279772277972).

The spelling of 143420253631 in words is "one hundred forty-three billion, four hundred twenty million, two hundred fifty-three thousand, six hundred thirty-one".