1142123215031 has 16 divisors (see below), whose sum is σ = 1183488783840. Its totient is φ = 1100891272320.

The previous prime is 1142123214979. The next prime is 1142123215063. The reversal of 1142123215031 is 1305123212411.

It is a cyclic number.

It is not a de Polignac number, because 1142123215031 - 2²² = 1142119020727 is a prime.

It is a super-2 number, since 2×1142123215031² (a number of 25 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 (1142123215081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47661905 + ... + 47685861.

It is an arithmetic number, because the mean of its divisors is an integer number (73968048990).

Almost surely, 2^{1142123215031} is an apocalyptic number.

1142123215031 is a deficient number, since it is larger than the sum of its proper divisors (41365568809).

1142123215031 is a wasteful number, since it uses less digits than its factorization.

1142123215031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26674.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1142123215031 its reverse (1305123212411), we get a palindrome (2447246427442).

The spelling of 1142123215031 in words is "one trillion, one hundred forty-two billion, one hundred twenty-three million, two hundred fifteen thousand, thirty-one".