402253512121145 has 16 divisors (see below), whose sum is σ = 485499327075840. Its totient is φ = 319943154438144.

The previous prime is 402253512121091. The next prime is 402253512121163. The reversal of 402253512121145 is 541121215352204.

It is a cyclic number.

It is not a de Polignac number, because 402253512121145 - 2¹⁰ = 402253512120121 is a prime.

It is a super-2 number, since 2×402253512121145² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 402253512121099 and 402253512121108.

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, 233710499 + ... + 235425368.

It is an arithmetic number, because the mean of its divisors is an integer number (30343707942240).

Almost surely, 2^{402253512121145} is an apocalyptic number.

It is an amenable number.

402253512121145 is a deficient number, since it is larger than the sum of its proper divisors (83245814954695).

402253512121145 is a wasteful number, since it uses less digits than its factorization.

402253512121145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469136864.

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 402253512121145 its reverse (541121215352204), we get a palindrome (943374727473349).

The spelling of 402253512121145 in words is "four hundred two trillion, two hundred fifty-three billion, five hundred twelve million, one hundred twenty-one thousand, one hundred forty-five".