211023240440142 has 16 divisors (see below), whose sum is σ = 454511594794320. Its totient is φ = 64930227827712.

The previous prime is 211023240440093. The next prime is 211023240440147. The reversal of 211023240440142 is 241044042320112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211023240440147) 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, 1352713079667 + ... + 1352713079822.

It is an arithmetic number, because the mean of its divisors is an integer number (28406974674645).

Almost surely, 2^{211023240440142} is an apocalyptic number.

211023240440142 is an abundant number, since it is smaller than the sum of its proper divisors (243488354354178).

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

211023240440142 is a wasteful number, since it uses less digits than its factorization.

211023240440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705426159507.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 211023240440142 its reverse (241044042320112), we get a palindrome (452067282760254).

The spelling of 211023240440142 in words is "two hundred eleven trillion, twenty-three billion, two hundred forty million, four hundred forty thousand, one hundred forty-two".