1121401352343 has 4 divisors (see below), whose sum is σ = 1495201803128. Its totient is φ = 747600901560.

The previous prime is 1121401352329. The next prime is 1121401352419. The reversal of 1121401352343 is 3432531041211.

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

It is not a de Polignac number, because 1121401352343 - 2⁵ = 1121401352311 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 1121401352343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121401352243) 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, 186900225388 + ... + 186900225393.

It is an arithmetic number, because the mean of its divisors is an integer number (373800450782).

Almost surely, 2^{1121401352343} is an apocalyptic number.

1121401352343 is a deficient number, since it is larger than the sum of its proper divisors (373800450785).

1121401352343 is an equidigital number, since it uses as much as digits as its factorization.

1121401352343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373800450784.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 1121401352343 its reverse (3432531041211), we get a palindrome (4553932393554).

The spelling of 1121401352343 in words is "one trillion, one hundred twenty-one billion, four hundred one million, three hundred fifty-two thousand, three hundred forty-three".