1260121143652 has 48 divisors (see below), whose sum is σ = 2668650969600. Its totient is φ = 508253847552.

The previous prime is 1260121143647. The next prime is 1260121143679. The reversal of 1260121143652 is 2563411210621.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9009349 + ... + 9148147.

It is an arithmetic number, because the mean of its divisors is an integer number (55596895200).

Almost surely, 2^{1260121143652} is an apocalyptic number.

It is an amenable number.

1260121143652 is an abundant number, since it is smaller than the sum of its proper divisors (1408529825948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1260121143652 is a wasteful number, since it uses less digits than its factorization.

1260121143652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157900 (or 157898 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 1260121143652 in words is "one trillion, two hundred sixty billion, one hundred twenty-one million, one hundred forty-three thousand, six hundred fifty-two".