1420115521401 has 32 divisors (see below), whose sum is σ = 2220020112000. Its totient is φ = 894721987584.

The previous prime is 1420115521399. The next prime is 1420115521403. The reversal of 1420115521401 is 1041255110241.

1420115521401 is a `hidden beast` number, since 1 + 4 + 20 + 115 + 521 + 4 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1420115521399) and next prime (1420115521403).

It is not a de Polignac number, because 1420115521401 - 2¹ = 1420115521399 is a prime.

It is a super-3 number, since 3×1420115521401³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1420115521403) 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, 3174360 + ... + 3593993.

It is an arithmetic number, because the mean of its divisors is an integer number (69375628500).

Almost surely, 2^{1420115521401} is an apocalyptic number.

It is an amenable number.

1420115521401 is a deficient number, since it is larger than the sum of its proper divisors (799904590599).

1420115521401 is a wasteful number, since it uses less digits than its factorization.

1420115521401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768790 (or 6768784 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The spelling of 1420115521401 in words is "one trillion, four hundred twenty billion, one hundred fifteen million, five hundred twenty-one thousand, four hundred one".