211153034125431 has 18 divisors (see below), whose sum is σ = 321896269017960. Its totient is φ = 133359811024536.

The previous prime is 211153034125409. The next prime is 211153034125433. The reversal of 211153034125431 is 134521430351112.

211153034125431 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 5 + 30 + 341 + 254 + 31 = 666.

It is not a de Polignac number, because 211153034125431 - 2⁹ = 211153034124919 is a prime.

It is a super-2 number, since 2×211153034125431² (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 (211153034125433) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32495077411 + ... + 32495083908.

Almost surely, 2^{211153034125431} is an apocalyptic number.

211153034125431 is a deficient number, since it is larger than the sum of its proper divisors (110743234892529).

211153034125431 is a wasteful number, since it uses less digits than its factorization.

211153034125431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64990161363 (or 64990161341 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 211153034125431 its reverse (134521430351112), we get a palindrome (345674464476543).

The spelling of 211153034125431 in words is "two hundred eleven trillion, one hundred fifty-three billion, thirty-four million, one hundred twenty-five thousand, four hundred thirty-one".