123021041402 has 48 divisors (see below), whose sum is σ = 220375738368. Its totient is φ = 51330998880.

The previous prime is 123021041383. The next prime is 123021041417. The reversal of 123021041402 is 204140120321.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 809828 + ... + 949664.

It is an arithmetic number, because the mean of its divisors is an integer number (4591161216).

Almost surely, 2^123021041402 is an apocalyptic number.

123021041402 is a deficient number, since it is larger than the sum of its proper divisors (97354696966).

123021041402 is a wasteful number, since it uses less digits than its factorization.

123021041402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140091 (or 140084 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 123021041402 its reverse (204140120321), we get a palindrome (327161161723).

The spelling of 123021041402 in words is "one hundred twenty-three billion, twenty-one million, forty-one thousand, four hundred two".