11311015454 has 4 divisors (see below), whose sum is σ = 16966523184. Its totient is φ = 5655507726.

The previous prime is 11311015447. The next prime is 11311015481. The reversal of 11311015454 is 45451011311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45451011311 = 16883 ⋅2692117.

It is a super-2 number, since 2×11311015454² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2827753862 + ... + 2827753865.

It is an arithmetic number, because the mean of its divisors is an integer number (4241630796).

Almost surely, 2^11311015454 is an apocalyptic number.

11311015454 is a deficient number, since it is larger than the sum of its proper divisors (5655507730).

11311015454 is an equidigital number, since it uses as much as digits as its factorization.

11311015454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655507729.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 11311015454 its reverse (45451011311), we get a palindrome (56762026765).

The spelling of 11311015454 in words is "eleven billion, three hundred eleven million, fifteen thousand, four hundred fifty-four".