143131513623 has 16 divisors (see below), whose sum is σ = 218141166336. Its totient is φ = 81775935360.

The previous prime is 143131513543. The next prime is 143131513633. The reversal of 143131513623 is 326315131341.

It is not a de Polignac number, because 143131513623 - 2¹⁴ = 143131497239 is a prime.

It is a super-2 number, since 2×143131513623² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143131513633) 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, 431586 + ... + 687407.

It is an arithmetic number, because the mean of its divisors is an integer number (13633822896).

Almost surely, 2^143131513623 is an apocalyptic number.

143131513623 is a deficient number, since it is larger than the sum of its proper divisors (75009652713).

143131513623 is a wasteful number, since it uses less digits than its factorization.

143131513623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125094.

The product of its digits is 19440, while the sum is 33.

Adding to 143131513623 its reverse (326315131341), we get a palindrome (469446644964).

The spelling of 143131513623 in words is "one hundred forty-three billion, one hundred thirty-one million, five hundred thirteen thousand, six hundred twenty-three".