142023020531 has 16 divisors (see below), whose sum is σ = 164038178304. Its totient is φ = 120441570624.

The previous prime is 142023020527. The next prime is 142023020537. The reversal of 142023020531 is 135020320241.

It is a cyclic number.

It is not a de Polignac number, because 142023020531 - 2² = 142023020527 is a prime.

It is a super-2 number, since 2×142023020531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142023020497 and 142023020506.

It is not an unprimeable number, because it can be changed into a prime (142023020537) 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, 701156 + ... + 880718.

It is an arithmetic number, because the mean of its divisors is an integer number (10252386144).

Almost surely, 2^142023020531 is an apocalyptic number.

142023020531 is a deficient number, since it is larger than the sum of its proper divisors (22015157773).

142023020531 is a wasteful number, since it uses less digits than its factorization.

142023020531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180770.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 142023020531 its reverse (135020320241), we get a palindrome (277043340772).

The spelling of 142023020531 in words is "one hundred forty-two billion, twenty-three million, twenty thousand, five hundred thirty-one".