140424321111021 has 12 divisors (see below), whose sum is σ = 203676770042460. Its totient is φ = 93227765051520.

The previous prime is 140424321111007. The next prime is 140424321111049. The reversal of 140424321111021 is 120111123424041.

140424321111021 is a `hidden beast` number, since 1 + 4 + 0 + 424 + 3 + 211 + 1 + 1 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 127975145012100 + 12449176098921 = 11312610^2 + 3528339^2 .

It is not a de Polignac number, because 140424321111021 - 2³³ = 140415731176429 is a prime.

It is a super-2 number, since 2×140424321111021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424321111421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32370749586 + ... + 32370753923.

It is an arithmetic number, because the mean of its divisors is an integer number (16973064170205).

Almost surely, 2^{140424321111021} is an apocalyptic number.

It is an amenable number.

140424321111021 is a deficient number, since it is larger than the sum of its proper divisors (63252448931439).

140424321111021 is a wasteful number, since it uses less digits than its factorization.

140424321111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64741503756 (or 64741503753 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 140424321111021 its reverse (120111123424041), we get a palindrome (260535444535062).

The spelling of 140424321111021 in words is "one hundred forty trillion, four hundred twenty-four billion, three hundred twenty-one million, one hundred eleven thousand, twenty-one".