245351301321 has 32 divisors (see below), whose sum is σ = 385557984000. Its totient is φ = 135863147520.

The previous prime is 245351301259. The next prime is 245351301337. The reversal of 245351301321 is 123103153542.

It is not a de Polignac number, because 245351301321 - 2²³ = 245342912713 is a prime.

It is a super-2 number, since 2×245351301321² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245351305321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 827956 + ... + 1084533.

It is an arithmetic number, because the mean of its divisors is an integer number (12048687000).

Almost surely, 2^245351301321 is an apocalyptic number.

245351301321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

245351301321 is a deficient number, since it is larger than the sum of its proper divisors (140206682679).

245351301321 is a wasteful number, since it uses less digits than its factorization.

245351301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912689.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 245351301321 its reverse (123103153542), we get a palindrome (368454454863).

The spelling of 245351301321 in words is "two hundred forty-five billion, three hundred fifty-one million, three hundred one thousand, three hundred twenty-one".