143213031240 has 64 divisors (see below), whose sum is σ = 452251684800. Its totient is φ = 36180133632.

The previous prime is 143213031239. The next prime is 143213031253. The reversal of 143213031240 is 42130312341.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 143213031240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31404087 + ... + 31408646.

It is an arithmetic number, because the mean of its divisors is an integer number (7066432575).

Almost surely, 2^143213031240 is an apocalyptic number.

143213031240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143213031240 is an abundant number, since it is smaller than the sum of its proper divisors (309038653560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143213031240 is a wasteful number, since it uses less digits than its factorization.

143213031240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62812766 (or 62812762 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 143213031240 its reverse (42130312341), we get a palindrome (185343343581).

The spelling of 143213031240 in words is "one hundred forty-three billion, two hundred thirteen million, thirty-one thousand, two hundred forty".