211407031430 has 16 divisors (see below), whose sum is σ = 434894464800. Its totient is φ = 72482410752.

The previous prime is 211407031417. The next prime is 211407031483. The reversal of 211407031430 is 34130704112.

It is a self number, because there is not a number n which added to its sum of digits gives 211407031430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510050155 + ... + 1510050294.

It is an arithmetic number, because the mean of its divisors is an integer number (27180904050).

Almost surely, 2^211407031430 is an apocalyptic number.

211407031430 is an abundant number, since it is smaller than the sum of its proper divisors (223487433370).

211407031430 is a wasteful number, since it uses less digits than its factorization.

211407031430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020100463.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 211407031430 its reverse (34130704112), we get a palindrome (245537735542).

The spelling of 211407031430 in words is "two hundred eleven billion, four hundred seven million, thirty-one thousand, four hundred thirty".