1021251141345 has 8 divisors (see below), whose sum is σ = 1634001826176. Its totient is φ = 544667275376.

The previous prime is 1021251141331. The next prime is 1021251141353. The reversal of 1021251141345 is 5431411521201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021251141345 - 2²⁶ = 1021184032481 is a prime.

It is a super-3 number, since 3×1021251141345³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34041704697 + ... + 34041704726.

It is an arithmetic number, because the mean of its divisors is an integer number (204250228272).

Almost surely, 2^{1021251141345} is an apocalyptic number.

1021251141345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1021251141345 is a deficient number, since it is larger than the sum of its proper divisors (612750684831).

1021251141345 is an equidigital number, since it uses as much as digits as its factorization.

1021251141345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68083409431.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 1021251141345 its reverse (5431411521201), we get a palindrome (6452662662546).

The spelling of 1021251141345 in words is "one trillion, twenty-one billion, two hundred fifty-one million, one hundred forty-one thousand, three hundred forty-five".