120421355514530 has 24 divisors (see below), whose sum is σ = 252147572976348. Its totient is φ = 41287321890528.

The previous prime is 120421355514491. The next prime is 120421355514533. The reversal of 120421355514530 is 35415553124021.

It can be written as a sum of positive squares in 2 ways, for example, as 114400971913921 + 6020383600609 = 10695839^2 + 2453647^2 .

It is a super-2 number, since 2×120421355514530² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120421355514533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122878933709 + ... + 122878934688.

Almost surely, 2^{120421355514530} is an apocalyptic number.

120421355514530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120421355514530 is an abundant number, since it is smaller than the sum of its proper divisors (131726217461818).

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

120421355514530 is a wasteful number, since it uses less digits than its factorization.

120421355514530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245757868418 (or 245757868411 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 120421355514530 in words is "one hundred twenty trillion, four hundred twenty-one billion, three hundred fifty-five million, five hundred fourteen thousand, five hundred thirty".