142400003212 has 12 divisors (see below), whose sum is σ = 249203772720. Its totient is φ = 71198925296.

The previous prime is 142400003191. The next prime is 142400003219. The reversal of 142400003212 is 212300004241.

It is a super-2 number, since 2×142400003212² (a number of 23 digits) contains 22 as substring.

142400003212 is a modest number, since divided by 3212 gives 1424 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 142400003212.

It is not an unprimeable number, because it can be changed into a prime (142400003219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78489 + ... + 539407.

It is an arithmetic number, because the mean of its divisors is an integer number (20766981060).

Almost surely, 2^142400003212 is an apocalyptic number.

It is an amenable number.

142400003212 is a deficient number, since it is larger than the sum of its proper divisors (106803769508).

142400003212 is a wasteful number, since it uses less digits than its factorization.

142400003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538160 (or 538158 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 142400003212 its reverse (212300004241), we get a palindrome (354700007453).

The spelling of 142400003212 in words is "one hundred forty-two billion, four hundred million, three thousand, two hundred twelve".