1021242440141 has 16 divisors (see below), whose sum is σ = 1285598865408. Its totient is φ = 788047369200.

The previous prime is 1021242440131. The next prime is 1021242440173. The reversal of 1021242440141 is 1410442421201.

It is not a de Polignac number, because 1021242440141 - 2¹⁸ = 1021242177997 is a prime.

It is a super-2 number, since 2×1021242440141² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021242440141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021242440111) 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, 64375025 + ... + 64390886.

It is an arithmetic number, because the mean of its divisors is an integer number (80349929088).

Almost surely, 2^{1021242440141} is an apocalyptic number.

1021242440141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1021242440141 is a deficient number, since it is larger than the sum of its proper divisors (264356425267).

1021242440141 is a wasteful number, since it uses less digits than its factorization.

1021242440141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128766032.

The product of its (nonzero) digits is 2048, while the sum is 26.

Adding to 1021242440141 its reverse (1410442421201), we get a palindrome (2431684861342).

The spelling of 1021242440141 in words is "one trillion, twenty-one billion, two hundred forty-two million, four hundred forty thousand, one hundred forty-one".