1223400343002 has 16 divisors (see below), whose sum is σ = 2450291137632. Its totient is φ = 407218372400.

The previous prime is 1223400342979. The next prime is 1223400343021. The reversal of 1223400343002 is 2003430043221.

It is a super-2 number, since 2×1223400343002² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145430928 + ... + 145439339.

It is an arithmetic number, because the mean of its divisors is an integer number (153143196102).

Almost surely, 2^{1223400343002} is an apocalyptic number.

1223400343002 is an abundant number, since it is smaller than the sum of its proper divisors (1226890794630).

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

1223400343002 is a wasteful number, since it uses less digits than its factorization.

1223400343002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290870973.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 1223400343002 its reverse (2003430043221), we get a palindrome (3226830386223).

The spelling of 1223400343002 in words is "one trillion, two hundred twenty-three billion, four hundred million, three hundred forty-three thousand, two".