11213077437 has 12 divisors (see below), whose sum is σ = 16199877564. Its totient is φ = 7473903360.

The previous prime is 11213077433. The next prime is 11213077457. The reversal of 11213077437 is 73477031211.

It is a happy number.

11213077437 is a `hidden beast` number, since 1 + 1 + 213 + 0 + 7 + 7 + 437 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9434431161 + 1778646276 = 97131^2 + 42174^2 .

It is not a de Polignac number, because 11213077437 - 2² = 11213077433 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213077433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74514 + ... + 167267.

It is an arithmetic number, because the mean of its divisors is an integer number (1349989797).

Almost surely, 2^11213077437 is an apocalyptic number.

It is an amenable number.

11213077437 is a deficient number, since it is larger than the sum of its proper divisors (4986800127).

11213077437 is a wasteful number, since it uses less digits than its factorization.

11213077437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246940 (or 246937 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The spelling of 11213077437 in words is "eleven billion, two hundred thirteen million, seventy-seven thousand, four hundred thirty-seven".