1253707021246 has 32 divisors (see below), whose sum is σ = 2008004940288. Its totient is φ = 585014876160.

The previous prime is 1253707021241. The next prime is 1253707021249. The reversal of 1253707021246 is 6421207073521.

It is a junction number, because it is equal to n+sod(n) for n = 1253707021199 and 1253707021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253707021241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1724226 + ... + 2341018.

It is an arithmetic number, because the mean of its divisors is an integer number (62750154384).

Almost surely, 2^{1253707021246} is an apocalyptic number.

1253707021246 is a deficient number, since it is larger than the sum of its proper divisors (754297919042).

1253707021246 is a wasteful number, since it uses less digits than its factorization.

1253707021246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617316.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 1253707021246 in words is "one trillion, two hundred fifty-three billion, seven hundred seven million, twenty-one thousand, two hundred forty-six".