1211465253242 has 8 divisors (see below), whose sum is σ = 1912839873600. Its totient is φ = 573851962044.

The previous prime is 1211465253239. The next prime is 1211465253283. The reversal of 1211465253242 is 2423525641121.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 31880664559 = 1211465253242 / (1 + 2 + 1 + 1 + 4 + 6 + 5 + 2 + 5 + 3 + 2 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1211465253196 and 1211465253205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15940332242 + ... + 15940332317.

It is an arithmetic number, because the mean of its divisors is an integer number (239104984200).

Almost surely, 2^{1211465253242} is an apocalyptic number.

1211465253242 is a deficient number, since it is larger than the sum of its proper divisors (701374620358).

1211465253242 is a wasteful number, since it uses less digits than its factorization.

1211465253242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31880664580.

The product of its digits is 115200, while the sum is 38.

The spelling of 1211465253242 in words is "one trillion, two hundred eleven billion, four hundred sixty-five million, two hundred fifty-three thousand, two hundred forty-two".