212503315445531 has 32 divisors (see below), whose sum is σ = 245440660308480. Its totient is φ = 181953985651200.

The previous prime is 212503315445521. The next prime is 212503315445537. The reversal of 212503315445531 is 135544513305212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212503315445531 is a prime.

It is a super-2 number, since 2×212503315445531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212503315445537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1703330051 + ... + 1703454803.

It is an arithmetic number, because the mean of its divisors is an integer number (7670020634640).

Almost surely, 2^{212503315445531} is an apocalyptic number.

212503315445531 is a deficient number, since it is larger than the sum of its proper divisors (32937344862949).

212503315445531 is a wasteful number, since it uses less digits than its factorization.

212503315445531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172067.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 212503315445531 in words is "two hundred twelve trillion, five hundred three billion, three hundred fifteen million, four hundred forty-five thousand, five hundred thirty-one".