1021241120142 has 16 divisors (see below), whose sum is σ = 2044543283712. Its totient is φ = 340070199480.

The previous prime is 1021241120117. The next prime is 1021241120143. The reversal of 1021241120142 is 2410211421201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021241120143) 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, 85870368 + ... + 85882259.

It is an arithmetic number, because the mean of its divisors is an integer number (127783955232).

Almost surely, 2^{1021241120142} is an apocalyptic number.

1021241120142 is an abundant number, since it is smaller than the sum of its proper divisors (1023302163570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021241120142 is a wasteful number, since it uses less digits than its factorization.

1021241120142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171753623.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1021241120142 its reverse (2410211421201), we get a palindrome (3431452541343).

It can be divided in two parts, 102124 and 1120142, that added together give a triangular number (1222266 = T₁₅₆₃).

The spelling of 1021241120142 in words is "one trillion, twenty-one billion, two hundred forty-one million, one hundred twenty thousand, one hundred forty-two".