142311546621 has 16 divisors (see below), whose sum is σ = 210840385600. Its totient is φ = 94870555344.

The previous prime is 142311546617. The next prime is 142311546647. The reversal of 142311546621 is 126645113241.

142311546621 is a `hidden beast` number, since 1 + 4 + 23 + 1 + 1 + 5 + 4 + 6 + 621 = 666.

It is not a de Polignac number, because 142311546621 - 2² = 142311546617 is a prime.

It is a super-2 number, since 2×142311546621² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142311546721) 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, 687210 + ... + 869988.

It is an arithmetic number, because the mean of its divisors is an integer number (13177524100).

Almost surely, 2^142311546621 is an apocalyptic number.

It is an amenable number.

142311546621 is a deficient number, since it is larger than the sum of its proper divisors (68528838979).

142311546621 is a wasteful number, since it uses less digits than its factorization.

142311546621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211625 (or 211619 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

Adding to 142311546621 its reverse (126645113241), we get a palindrome (268956659862).

The spelling of 142311546621 in words is "one hundred forty-two billion, three hundred eleven million, five hundred forty-six thousand, six hundred twenty-one".