11487138623 has 2 divisors, whose sum is σ = 11487138624. Its totient is φ = 11487138622.

The previous prime is 11487138613. The next prime is 11487138671. The reversal of 11487138623 is 32683178411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11487138623 - 2⁸ = 11487138367 is a prime.

It is a super-3 number, since 3×11487138623³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11487138613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5743569311 + 5743569312.

It is an arithmetic number, because the mean of its divisors is an integer number (5743569312).

Almost surely, 2^11487138623 is an apocalyptic number.

11487138623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11487138623 is an equidigital number, since it uses as much as digits as its factorization.

11487138623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The spelling of 11487138623 in words is "eleven billion, four hundred eighty-seven million, one hundred thirty-eight thousand, six hundred twenty-three".