1101021231142 has 8 divisors (see below), whose sum is σ = 1887464967696. Its totient is φ = 471866241912.

The previous prime is 1101021231109. The next prime is 1101021231143. The reversal of 1101021231142 is 2411321201011.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101021231143) 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, 39322186813 + ... + 39322186840.

It is an arithmetic number, because the mean of its divisors is an integer number (235933120962).

Almost surely, 2^{1101021231142} is an apocalyptic number.

1101021231142 is a deficient number, since it is larger than the sum of its proper divisors (786443736554).

1101021231142 is an equidigital number, since it uses as much as digits as its factorization.

1101021231142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78644373662.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1101021231142 its reverse (2411321201011), we get a palindrome (3512342432153).

The spelling of 1101021231142 in words is "one trillion, one hundred one billion, twenty-one million, two hundred thirty-one thousand, one hundred forty-two".