1142030405531 has 8 divisors (see below), whose sum is σ = 1240915891200. Its totient is φ = 1047022782120.

The previous prime is 1142030405513. The next prime is 1142030405561. The reversal of 1142030405531 is 1355040302411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142030405531 - 2¹⁰ = 1142030404507 is a prime.

It is a super-2 number, since 2×1142030405531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142030405494 and 1142030405503.

It is not an unprimeable number, because it can be changed into a prime (1142030405561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969464951 + ... + 969466128.

It is an arithmetic number, because the mean of its divisors is an integer number (155114486400).

Almost surely, 2^{1142030405531} is an apocalyptic number.

1142030405531 is a deficient number, since it is larger than the sum of its proper divisors (98885485669).

1142030405531 is a wasteful number, since it uses less digits than its factorization.

1142030405531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938931129.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1142030405531 its reverse (1355040302411), we get a palindrome (2497070707942).

The spelling of 1142030405531 in words is "one trillion, one hundred forty-two billion, thirty million, four hundred five thousand, five hundred thirty-one".