1102343112521 has 4 divisors (see below), whose sum is σ = 1259820700032. Its totient is φ = 944865525012.

The previous prime is 1102343112461. The next prime is 1102343112523. The reversal of 1102343112521 is 1252113432011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1102343112521 - 2²² = 1102338918217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102343112523) 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, 78738793745 + ... + 78738793758.

It is an arithmetic number, because the mean of its divisors is an integer number (314955175008).

Almost surely, 2^{1102343112521} is an apocalyptic number.

It is an amenable number.

1102343112521 is a deficient number, since it is larger than the sum of its proper divisors (157477587511).

1102343112521 is an equidigital number, since it uses as much as digits as its factorization.

1102343112521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157477587510.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1102343112521 its reverse (1252113432011), we get a palindrome (2354456544532).

The spelling of 1102343112521 in words is "one trillion, one hundred two billion, three hundred forty-three million, one hundred twelve thousand, five hundred twenty-one".