723490402122 has 24 divisors (see below), whose sum is σ = 1567589789376. Its totient is φ = 241159274856.

The previous prime is 723490402091. The next prime is 723490402153. The reversal of 723490402122 is 221204094327.

It is a happy number.

723490402122 is a `hidden beast` number, since 7 + 2 + 3 + 490 + 40 + 2 + 122 = 666.

It is an interprime number because it is at equal distance from previous prime (723490402091) and next prime (723490402153).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 820693 + ... + 1456199.

It is an arithmetic number, because the mean of its divisors is an integer number (65316241224).

Almost surely, 2^723490402122 is an apocalyptic number.

723490402122 is an abundant number, since it is smaller than the sum of its proper divisors (844099387254).

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

723490402122 is a wasteful number, since it uses less digits than its factorization.

723490402122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698762 (or 698759 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

Adding to 723490402122 its reverse (221204094327), we get a palindrome (944694496449).

The spelling of 723490402122 in words is "seven hundred twenty-three billion, four hundred ninety million, four hundred two thousand, one hundred twenty-two".