211153053340 has 48 divisors (see below), whose sum is σ = 455185745280. Its totient is φ = 82249689600.

The previous prime is 211153053277. The next prime is 211153053361. The reversal of 211153053340 is 43350351112.

It is a happy number.

It is a super-2 number, since 2×211153053340² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211153053299 and 211153053308.

It is a congruent number.

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, 800011 + ... + 1030690.

It is an arithmetic number, because the mean of its divisors is an integer number (9483036360).

Almost surely, 2^211153053340 is an apocalyptic number.

211153053340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211153053340 is an abundant number, since it is smaller than the sum of its proper divisors (244032691940).

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

211153053340 is a wasteful number, since it uses less digits than its factorization.

211153053340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830862 (or 1830860 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 211153053340 in words is "two hundred eleven billion, one hundred fifty-three million, fifty-three thousand, three hundred forty".