11021431454 has 8 divisors (see below), whose sum is σ = 18035069688. Its totient is φ = 5009741560.

The previous prime is 11021431453. The next prime is 11021431471. The reversal of 11021431454 is 45413412011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021431453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250487057 + ... + 250487100.

It is an arithmetic number, because the mean of its divisors is an integer number (2254383711).

Almost surely, 2^11021431454 is an apocalyptic number.

11021431454 is a deficient number, since it is larger than the sum of its proper divisors (7013638234).

11021431454 is a wasteful number, since it uses less digits than its factorization.

11021431454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500974170.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 11021431454 its reverse (45413412011), we get a palindrome (56434843465).

The spelling of 11021431454 in words is "eleven billion, twenty-one million, four hundred thirty-one thousand, four hundred fifty-four".