11554142031451 has 4 divisors (see below), whose sum is σ = 11555070012904. Its totient is φ = 11553214050000.

The previous prime is 11554142031427. The next prime is 11554142031457. The reversal of 11554142031451 is 15413024145511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11554142031451 - 2⁹ = 11554142030939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11554142031451.

It is not an unprimeable number, because it can be changed into a prime (11554142031457) 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, 463972050 + ... + 463996951.

It is an arithmetic number, because the mean of its divisors is an integer number (2888767503226).

Almost surely, 2^{11554142031451} is an apocalyptic number.

11554142031451 is a deficient number, since it is larger than the sum of its proper divisors (927981453).

11554142031451 is an equidigital number, since it uses as much as digits as its factorization.

11554142031451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927981452.

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 11554142031451 its reverse (15413024145511), we get a palindrome (26967166176962).

The spelling of 11554142031451 in words is "eleven trillion, five hundred fifty-four billion, one hundred forty-two million, thirty-one thousand, four hundred fifty-one".