211234020144 has 80 divisors (see below), whose sum is σ = 623954492928. Its totient is φ = 60322461696.

The previous prime is 211234020131. The next prime is 211234020157. The reversal of 211234020144 is 441020432112.

It is an interprime number because it is at equal distance from previous prime (211234020131) and next prime (211234020157).

It is a super-2 number, since 2×211234020144² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521869 + ... + 833555.

Almost surely, 2^211234020144 is an apocalyptic number.

211234020144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211234020144 is an abundant number, since it is smaller than the sum of its proper divisors (412720472784).

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

211234020144 is a wasteful number, since it uses less digits than its factorization.

211234020144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313722 (or 313716 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 211234020144 its reverse (441020432112), we get a palindrome (652254452256).

The spelling of 211234020144 in words is "two hundred eleven billion, two hundred thirty-four million, twenty thousand, one hundred forty-four".