1401123021102 has 128 divisors (see below), whose sum is σ = 3648816460800. Its totient is φ = 390169267200.

The previous prime is 1401123021049. The next prime is 1401123021113. The reversal of 1401123021102 is 2011203211041.

1401123021102 is a `hidden beast` number, since 1 + 401 + 1 + 230 + 21 + 10 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15748102 + ... + 15836822.

It is an arithmetic number, because the mean of its divisors is an integer number (28506378600).

Almost surely, 2^{1401123021102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401123021102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1824408230400).

1401123021102 is an abundant number, since it is smaller than the sum of its proper divisors (2247693439698).

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

1401123021102 is a wasteful number, since it uses less digits than its factorization.

1401123021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89799 (or 89793 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1401123021102 its reverse (2011203211041), we get a palindrome (3412326232143).

The spelling of 1401123021102 in words is "one trillion, four hundred one billion, one hundred twenty-three million, twenty-one thousand, one hundred two".